How to get to know the information about a package before installation in terminalHow to inspect and validate a deb package before installation?How can I analyze this debian package before installing it?How to determine if a package is a meta-package from the command line?How to make apt-get known the imported deb package in apt-cacherHow do package files .deb files that are installed outside the package tree get put into the normal package tree?How to install version 4.11 of the package texinfo?How to install suggested package after installation main package?How to inspect and validate a deb package before installation?How can I get a useful and detailed description of the purpose of a package?

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How to get to know the information about a package before installation in terminal


How to inspect and validate a deb package before installation?How can I analyze this debian package before installing it?How to determine if a package is a meta-package from the command line?How to make apt-get known the imported deb package in apt-cacherHow do package files .deb files that are installed outside the package tree get put into the normal package tree?How to install version 4.11 of the package texinfo?How to install suggested package after installation main package?How to inspect and validate a deb package before installation?How can I get a useful and detailed description of the purpose of a package?






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53


















I was wondering how to get the information about a package in terminal, before installation with apt-get install so that I can decide whether to install it, based on the description.



Thanks and regards!










share|improve this question

































    53


















    I was wondering how to get the information about a package in terminal, before installation with apt-get install so that I can decide whether to install it, based on the description.



    Thanks and regards!










    share|improve this question





























      53













      53









      53


      20






      I was wondering how to get the information about a package in terminal, before installation with apt-get install so that I can decide whether to install it, based on the description.



      Thanks and regards!










      share|improve this question
















      I was wondering how to get the information about a package in terminal, before installation with apt-get install so that I can decide whether to install it, based on the description.



      Thanks and regards!







      package-management






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jun 9 '11 at 15:28









      Oxwivi

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      14k45 gold badges123 silver badges188 bronze badges










      asked Jun 9 '11 at 15:13









      TimTim

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          3 Answers
          3






          active

          oldest

          votes


















          63



















          Use



           apt-cache show PACKAGE


          to see the description and some other information about package after its installed



           dpkg -L package_name


          to see what files the package contains.






          share|improve this answer






















          • 1





            The second hint with listing the package content ie. files doesn't work for me. It always says dpkg-query: package 'package_name' is not installed so it can't be used for inspecting the file before installing it. The apt-file utility seems to be a more viable option for that, although I can't refer from my own experience yet.

            – Huge
            Mar 2 '16 at 16:05












          • dpkg -L won't always work for example aide-xen will report not installed.

            – Mike Q
            Jul 18 at 19:35


















          10



















          For similar tasks, the package management system ATP (the Advanced Package Tool) provide several solutions (https://en.wikipedia.org/wiki/Advanced_Packaging_Tool).




          apt-cache showpkg package_name



          Description taken from here https://linux.die.net/man/8/apt-cache




          showpkg displays information about the packages listed on the command
          line. Remaining arguments are package names. The available versions
          and reverse
          dependencies of each package listed are listed, as well as forward dependencies for each version. Forward (normal) dependencies
          are those packages upon
          which the package in question depends; reverse dependencies are those packages that depend upon the package in question. Thus,
          forward dependencies must
          be satisfied for a package, but reverse dependencies need not be. For instance, apt-cache showpkg libreadline2 would produce
          output similar to the
          following




          $ apt-cache showpkg javacc
          Package: javacc
          Versions:
          5.0-5 (/var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages) (/var/lib/apt/lists/httpredir.debian.org_debian_dists_jessie_main_binary-am)
          Description Language:
          File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages
          MD5: 61505d89a764133cbd782b370c93fe98
          Description Language: en
          File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_i18n_Translation-en
          MD5: 61505d89a764133cbd782b370c93fe98


          Reverse Depends:
          ant-optional,javacc
          ant-optional,javacc
          libjavacc-maven-plugin-java,javacc
          javacc-doc,javacc
          ant-optional,javacc
          Dependencies:
          5.0-5 - default-jre-headless (16 (null)) java1-runtime-headless (16 (null)) java2-runtime-headless (0 (null)) javacc-doc (0 (null))
          Provides:
          5.0-5 -
          Reverse Provides:


          apt-cache show package_name




          Displays the package records for the named packages.




          $ apt-cache show javacc
          Package: javacc
          Version: 5.0-5
          Installed-Size: 380
          Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
          Architecture: all
          Depends: default-jre-headless | java1-runtime-headless | java2-runtime-headless
          Suggests: javacc-doc
          Description-en: Parser generator for use with Java
          Java Compiler-Compiler (JavaCC) is (according to sun)
          "the most popular parser generator" for use with Java [tm]
          applications.
          .
          A parser generator is a tool that reads a grammar specification
          and converts it to a Java program that can recognize matches to
          the grammar. In addition to the parser generator itself, JavaCC
          provides other standard capabilities related to parser
          generation such as tree building (via a tool called JJTree
          included with JavaCC), actions, debugging, etc.
          Description-md5: 61505d89a764133cbd782b370c93fe98
          Homepage: http://javacc.java.net
          Tag: devel::code-generator, devel::lang:java, implemented-in::java,
          interface::commandline, role::program, scope::utility
          Section: java
          Priority: optional
          Filename: pool/main/j/javacc/javacc_5.0-5_all.deb
          Size: 284722
          MD5sum: b1efd2defeba45cd97a48541235e6255
          SHA1: c5e4b1991be06ec56e6d1a5b916c714068e5bf6b
          SHA256: 757f9566d488858285c23c2ac12e05168af38953cf034f6e44123c2a88cb7c83


          apt-cache policy package_name




          This is meant to help debug issues relating to the preferences file.
          With no arguments it will print out the priorities of each source.
          Otherwise it prints out detailed information about the priority
          selection of the named package.




          $ apt-cache policy javacc
          javacc:
          Installed: (none)
          Candidate: 5.0-5
          Version table:
          5.0-5 0
          500 http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
          500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages


          apt-cache madison package_name




          apt-cache's madison command attempts to mimic the output format and
          a subset of the functionality of the Debian archive management
          tool, madison. It displays available versions of a package in a
          tabular format. Unlike the original madison, it can only display
          information for the architecture for which APT has retrieved
          package lists (APT::Architecture).




          $ apt-cache madison javacc
          javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
          javacc | 5.0-5 | http://httpredir.debian.org/debian/ jessie/main amd64 Packages
          javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main Sources


          apt-cache showsrc package_name




          Displays all the source package records that match the given package
          names. All versions are shown, as well as all records that declare the
          name to be a Binary.




          $ apt-cache showsrc javacc
          Package: javacc
          Binary: javacc, javacc-doc
          Version: 5.0-5
          Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
          Uploaders: Emmanuel Bourg <ebourg@apache.org>
          Build-Depends: ant, debhelper (>= 7), cdbs (>= 0.4.5.3), default-jdk
          Build-Depends-Indep: ant-optional, libxalan2-java, docbook-to-man, junit, maven-repo-helper
          Architecture: all
          Standards-Version: 3.9.4
          Format: 3.0 (quilt)
          Files:
          6715506605c7a4e750309b7ef645ec86 1397 javacc_5.0-5.dsc
          edf47d357c6f36458474a1b537b88a12 711183 javacc_5.0.orig.tar.gz
          b3308a9aefeca4318a0838b2a3213cea 7893 javacc_5.0-5.debian.tar.gz
          Vcs-Browser: http://anonscm.debian.org/viewvc/pkg-java/trunk/javacc
          Vcs-Svn: svn://anonscm.debian.org/pkg-java/trunk/javacc
          Checksums-Sha1:
          f4a4ea175ce87af588c713eaab8caeaefc64183f 1397 javacc_5.0-5.dsc
          f6e12a183579a67528f351282251560faf4737db 711183 javacc_5.0.orig.tar.gz
          4aebf3cadecd96f304f80786f07473574569dc02 7893 javacc_5.0-5.debian.tar.gz
          Checksums-Sha256:
          4a61f89f984809964e3d63d159998ff29c951765a046ac87dca32b21eb54f99b 1397 javacc_5.0-5.dsc
          aab2c3e2f37648b9e708e6bad4c8b544cba63b66f1791907e6e3f89609b27150 711183 javacc_5.0.orig.tar.gz
          66418d91dc6c6d45d941181d08150d272d3db57a944f3ce61847e5e1ec7c0659 7893 javacc_5.0-5.debian.tar.gz
          Homepage: http://javacc.java.net
          Package-List:
          javacc deb java optional
          javacc-doc deb doc optional
          Directory: pool/main/j/javacc
          Priority: source
          Section: java


          apt-cache depends package_name




          Shows a listing of each dependency a package has and all the possible
          other packages that can fulfill that dependency.




          $ apt-cache depends javacc
          javacc
          |Depends: default-jre-headless
          |Depends: <java1-runtime-headless>
          gcj-4.8-jre-headless
          gcj-4.9-jre-headless
          gcj-jre-headless
          Depends: <java2-runtime-headless>
          default-jre-headless
          gcj-4.8-jre-headless
          gcj-4.9-jre-headless
          gcj-jre-headless
          openjdk-7-jre-headless
          openjdk-8-jre-headless
          Suggests: javacc-doc



          Testing environment



          $ lsb_release -a
          No LSB modules are available.
          Distributor ID: Debian
          Description: Debian GNU/Linux 8.6 (jessie)
          Release: 8.6
          Codename: jessie
          setivolkylany$/media/setivolkylany/WorkDisk/Private$ uname -a
          Linux localhost 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux


          Based on https://linux.die.net/man/8/apt-cache and http://manpages.ubuntu.com/manpages/zesty/man8/apt-cache.8.html






          share|improve this answer
































            0



















            For those just looking for a basic summary of the package :



            apt-cache search ^package-name$





            share|improve this answer


























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              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              63



















              Use



               apt-cache show PACKAGE


              to see the description and some other information about package after its installed



               dpkg -L package_name


              to see what files the package contains.






              share|improve this answer






















              • 1





                The second hint with listing the package content ie. files doesn't work for me. It always says dpkg-query: package 'package_name' is not installed so it can't be used for inspecting the file before installing it. The apt-file utility seems to be a more viable option for that, although I can't refer from my own experience yet.

                – Huge
                Mar 2 '16 at 16:05












              • dpkg -L won't always work for example aide-xen will report not installed.

                – Mike Q
                Jul 18 at 19:35















              63



















              Use



               apt-cache show PACKAGE


              to see the description and some other information about package after its installed



               dpkg -L package_name


              to see what files the package contains.






              share|improve this answer






















              • 1





                The second hint with listing the package content ie. files doesn't work for me. It always says dpkg-query: package 'package_name' is not installed so it can't be used for inspecting the file before installing it. The apt-file utility seems to be a more viable option for that, although I can't refer from my own experience yet.

                – Huge
                Mar 2 '16 at 16:05












              • dpkg -L won't always work for example aide-xen will report not installed.

                – Mike Q
                Jul 18 at 19:35













              63















              63











              63









              Use



               apt-cache show PACKAGE


              to see the description and some other information about package after its installed



               dpkg -L package_name


              to see what files the package contains.






              share|improve this answer
















              Use



               apt-cache show PACKAGE


              to see the description and some other information about package after its installed



               dpkg -L package_name


              to see what files the package contains.







              share|improve this answer















              share|improve this answer




              share|improve this answer








              edited Apr 13 '17 at 15:33









              Scott Stensland

              7,5676 gold badges31 silver badges49 bronze badges




              7,5676 gold badges31 silver badges49 bronze badges










              answered Jun 9 '11 at 15:32









              Florian DieschFlorian Diesch

              70.1k17 gold badges184 silver badges197 bronze badges




              70.1k17 gold badges184 silver badges197 bronze badges










              • 1





                The second hint with listing the package content ie. files doesn't work for me. It always says dpkg-query: package 'package_name' is not installed so it can't be used for inspecting the file before installing it. The apt-file utility seems to be a more viable option for that, although I can't refer from my own experience yet.

                – Huge
                Mar 2 '16 at 16:05












              • dpkg -L won't always work for example aide-xen will report not installed.

                – Mike Q
                Jul 18 at 19:35












              • 1





                The second hint with listing the package content ie. files doesn't work for me. It always says dpkg-query: package 'package_name' is not installed so it can't be used for inspecting the file before installing it. The apt-file utility seems to be a more viable option for that, although I can't refer from my own experience yet.

                – Huge
                Mar 2 '16 at 16:05












              • dpkg -L won't always work for example aide-xen will report not installed.

                – Mike Q
                Jul 18 at 19:35







              1




              1





              The second hint with listing the package content ie. files doesn't work for me. It always says dpkg-query: package 'package_name' is not installed so it can't be used for inspecting the file before installing it. The apt-file utility seems to be a more viable option for that, although I can't refer from my own experience yet.

              – Huge
              Mar 2 '16 at 16:05






              The second hint with listing the package content ie. files doesn't work for me. It always says dpkg-query: package 'package_name' is not installed so it can't be used for inspecting the file before installing it. The apt-file utility seems to be a more viable option for that, although I can't refer from my own experience yet.

              – Huge
              Mar 2 '16 at 16:05














              dpkg -L won't always work for example aide-xen will report not installed.

              – Mike Q
              Jul 18 at 19:35





              dpkg -L won't always work for example aide-xen will report not installed.

              – Mike Q
              Jul 18 at 19:35













              10



















              For similar tasks, the package management system ATP (the Advanced Package Tool) provide several solutions (https://en.wikipedia.org/wiki/Advanced_Packaging_Tool).




              apt-cache showpkg package_name



              Description taken from here https://linux.die.net/man/8/apt-cache




              showpkg displays information about the packages listed on the command
              line. Remaining arguments are package names. The available versions
              and reverse
              dependencies of each package listed are listed, as well as forward dependencies for each version. Forward (normal) dependencies
              are those packages upon
              which the package in question depends; reverse dependencies are those packages that depend upon the package in question. Thus,
              forward dependencies must
              be satisfied for a package, but reverse dependencies need not be. For instance, apt-cache showpkg libreadline2 would produce
              output similar to the
              following




              $ apt-cache showpkg javacc
              Package: javacc
              Versions:
              5.0-5 (/var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages) (/var/lib/apt/lists/httpredir.debian.org_debian_dists_jessie_main_binary-am)
              Description Language:
              File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages
              MD5: 61505d89a764133cbd782b370c93fe98
              Description Language: en
              File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_i18n_Translation-en
              MD5: 61505d89a764133cbd782b370c93fe98


              Reverse Depends:
              ant-optional,javacc
              ant-optional,javacc
              libjavacc-maven-plugin-java,javacc
              javacc-doc,javacc
              ant-optional,javacc
              Dependencies:
              5.0-5 - default-jre-headless (16 (null)) java1-runtime-headless (16 (null)) java2-runtime-headless (0 (null)) javacc-doc (0 (null))
              Provides:
              5.0-5 -
              Reverse Provides:


              apt-cache show package_name




              Displays the package records for the named packages.




              $ apt-cache show javacc
              Package: javacc
              Version: 5.0-5
              Installed-Size: 380
              Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
              Architecture: all
              Depends: default-jre-headless | java1-runtime-headless | java2-runtime-headless
              Suggests: javacc-doc
              Description-en: Parser generator for use with Java
              Java Compiler-Compiler (JavaCC) is (according to sun)
              "the most popular parser generator" for use with Java [tm]
              applications.
              .
              A parser generator is a tool that reads a grammar specification
              and converts it to a Java program that can recognize matches to
              the grammar. In addition to the parser generator itself, JavaCC
              provides other standard capabilities related to parser
              generation such as tree building (via a tool called JJTree
              included with JavaCC), actions, debugging, etc.
              Description-md5: 61505d89a764133cbd782b370c93fe98
              Homepage: http://javacc.java.net
              Tag: devel::code-generator, devel::lang:java, implemented-in::java,
              interface::commandline, role::program, scope::utility
              Section: java
              Priority: optional
              Filename: pool/main/j/javacc/javacc_5.0-5_all.deb
              Size: 284722
              MD5sum: b1efd2defeba45cd97a48541235e6255
              SHA1: c5e4b1991be06ec56e6d1a5b916c714068e5bf6b
              SHA256: 757f9566d488858285c23c2ac12e05168af38953cf034f6e44123c2a88cb7c83


              apt-cache policy package_name




              This is meant to help debug issues relating to the preferences file.
              With no arguments it will print out the priorities of each source.
              Otherwise it prints out detailed information about the priority
              selection of the named package.




              $ apt-cache policy javacc
              javacc:
              Installed: (none)
              Candidate: 5.0-5
              Version table:
              5.0-5 0
              500 http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
              500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages


              apt-cache madison package_name




              apt-cache's madison command attempts to mimic the output format and
              a subset of the functionality of the Debian archive management
              tool, madison. It displays available versions of a package in a
              tabular format. Unlike the original madison, it can only display
              information for the architecture for which APT has retrieved
              package lists (APT::Architecture).




              $ apt-cache madison javacc
              javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
              javacc | 5.0-5 | http://httpredir.debian.org/debian/ jessie/main amd64 Packages
              javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main Sources


              apt-cache showsrc package_name




              Displays all the source package records that match the given package
              names. All versions are shown, as well as all records that declare the
              name to be a Binary.




              $ apt-cache showsrc javacc
              Package: javacc
              Binary: javacc, javacc-doc
              Version: 5.0-5
              Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
              Uploaders: Emmanuel Bourg <ebourg@apache.org>
              Build-Depends: ant, debhelper (>= 7), cdbs (>= 0.4.5.3), default-jdk
              Build-Depends-Indep: ant-optional, libxalan2-java, docbook-to-man, junit, maven-repo-helper
              Architecture: all
              Standards-Version: 3.9.4
              Format: 3.0 (quilt)
              Files:
              6715506605c7a4e750309b7ef645ec86 1397 javacc_5.0-5.dsc
              edf47d357c6f36458474a1b537b88a12 711183 javacc_5.0.orig.tar.gz
              b3308a9aefeca4318a0838b2a3213cea 7893 javacc_5.0-5.debian.tar.gz
              Vcs-Browser: http://anonscm.debian.org/viewvc/pkg-java/trunk/javacc
              Vcs-Svn: svn://anonscm.debian.org/pkg-java/trunk/javacc
              Checksums-Sha1:
              f4a4ea175ce87af588c713eaab8caeaefc64183f 1397 javacc_5.0-5.dsc
              f6e12a183579a67528f351282251560faf4737db 711183 javacc_5.0.orig.tar.gz
              4aebf3cadecd96f304f80786f07473574569dc02 7893 javacc_5.0-5.debian.tar.gz
              Checksums-Sha256:
              4a61f89f984809964e3d63d159998ff29c951765a046ac87dca32b21eb54f99b 1397 javacc_5.0-5.dsc
              aab2c3e2f37648b9e708e6bad4c8b544cba63b66f1791907e6e3f89609b27150 711183 javacc_5.0.orig.tar.gz
              66418d91dc6c6d45d941181d08150d272d3db57a944f3ce61847e5e1ec7c0659 7893 javacc_5.0-5.debian.tar.gz
              Homepage: http://javacc.java.net
              Package-List:
              javacc deb java optional
              javacc-doc deb doc optional
              Directory: pool/main/j/javacc
              Priority: source
              Section: java


              apt-cache depends package_name




              Shows a listing of each dependency a package has and all the possible
              other packages that can fulfill that dependency.




              $ apt-cache depends javacc
              javacc
              |Depends: default-jre-headless
              |Depends: <java1-runtime-headless>
              gcj-4.8-jre-headless
              gcj-4.9-jre-headless
              gcj-jre-headless
              Depends: <java2-runtime-headless>
              default-jre-headless
              gcj-4.8-jre-headless
              gcj-4.9-jre-headless
              gcj-jre-headless
              openjdk-7-jre-headless
              openjdk-8-jre-headless
              Suggests: javacc-doc



              Testing environment



              $ lsb_release -a
              No LSB modules are available.
              Distributor ID: Debian
              Description: Debian GNU/Linux 8.6 (jessie)
              Release: 8.6
              Codename: jessie
              setivolkylany$/media/setivolkylany/WorkDisk/Private$ uname -a
              Linux localhost 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux


              Based on https://linux.die.net/man/8/apt-cache and http://manpages.ubuntu.com/manpages/zesty/man8/apt-cache.8.html






              share|improve this answer





























                10



















                For similar tasks, the package management system ATP (the Advanced Package Tool) provide several solutions (https://en.wikipedia.org/wiki/Advanced_Packaging_Tool).




                apt-cache showpkg package_name



                Description taken from here https://linux.die.net/man/8/apt-cache




                showpkg displays information about the packages listed on the command
                line. Remaining arguments are package names. The available versions
                and reverse
                dependencies of each package listed are listed, as well as forward dependencies for each version. Forward (normal) dependencies
                are those packages upon
                which the package in question depends; reverse dependencies are those packages that depend upon the package in question. Thus,
                forward dependencies must
                be satisfied for a package, but reverse dependencies need not be. For instance, apt-cache showpkg libreadline2 would produce
                output similar to the
                following




                $ apt-cache showpkg javacc
                Package: javacc
                Versions:
                5.0-5 (/var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages) (/var/lib/apt/lists/httpredir.debian.org_debian_dists_jessie_main_binary-am)
                Description Language:
                File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages
                MD5: 61505d89a764133cbd782b370c93fe98
                Description Language: en
                File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_i18n_Translation-en
                MD5: 61505d89a764133cbd782b370c93fe98


                Reverse Depends:
                ant-optional,javacc
                ant-optional,javacc
                libjavacc-maven-plugin-java,javacc
                javacc-doc,javacc
                ant-optional,javacc
                Dependencies:
                5.0-5 - default-jre-headless (16 (null)) java1-runtime-headless (16 (null)) java2-runtime-headless (0 (null)) javacc-doc (0 (null))
                Provides:
                5.0-5 -
                Reverse Provides:


                apt-cache show package_name




                Displays the package records for the named packages.




                $ apt-cache show javacc
                Package: javacc
                Version: 5.0-5
                Installed-Size: 380
                Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
                Architecture: all
                Depends: default-jre-headless | java1-runtime-headless | java2-runtime-headless
                Suggests: javacc-doc
                Description-en: Parser generator for use with Java
                Java Compiler-Compiler (JavaCC) is (according to sun)
                "the most popular parser generator" for use with Java [tm]
                applications.
                .
                A parser generator is a tool that reads a grammar specification
                and converts it to a Java program that can recognize matches to
                the grammar. In addition to the parser generator itself, JavaCC
                provides other standard capabilities related to parser
                generation such as tree building (via a tool called JJTree
                included with JavaCC), actions, debugging, etc.
                Description-md5: 61505d89a764133cbd782b370c93fe98
                Homepage: http://javacc.java.net
                Tag: devel::code-generator, devel::lang:java, implemented-in::java,
                interface::commandline, role::program, scope::utility
                Section: java
                Priority: optional
                Filename: pool/main/j/javacc/javacc_5.0-5_all.deb
                Size: 284722
                MD5sum: b1efd2defeba45cd97a48541235e6255
                SHA1: c5e4b1991be06ec56e6d1a5b916c714068e5bf6b
                SHA256: 757f9566d488858285c23c2ac12e05168af38953cf034f6e44123c2a88cb7c83


                apt-cache policy package_name




                This is meant to help debug issues relating to the preferences file.
                With no arguments it will print out the priorities of each source.
                Otherwise it prints out detailed information about the priority
                selection of the named package.




                $ apt-cache policy javacc
                javacc:
                Installed: (none)
                Candidate: 5.0-5
                Version table:
                5.0-5 0
                500 http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
                500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages


                apt-cache madison package_name




                apt-cache's madison command attempts to mimic the output format and
                a subset of the functionality of the Debian archive management
                tool, madison. It displays available versions of a package in a
                tabular format. Unlike the original madison, it can only display
                information for the architecture for which APT has retrieved
                package lists (APT::Architecture).




                $ apt-cache madison javacc
                javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
                javacc | 5.0-5 | http://httpredir.debian.org/debian/ jessie/main amd64 Packages
                javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main Sources


                apt-cache showsrc package_name




                Displays all the source package records that match the given package
                names. All versions are shown, as well as all records that declare the
                name to be a Binary.




                $ apt-cache showsrc javacc
                Package: javacc
                Binary: javacc, javacc-doc
                Version: 5.0-5
                Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
                Uploaders: Emmanuel Bourg <ebourg@apache.org>
                Build-Depends: ant, debhelper (>= 7), cdbs (>= 0.4.5.3), default-jdk
                Build-Depends-Indep: ant-optional, libxalan2-java, docbook-to-man, junit, maven-repo-helper
                Architecture: all
                Standards-Version: 3.9.4
                Format: 3.0 (quilt)
                Files:
                6715506605c7a4e750309b7ef645ec86 1397 javacc_5.0-5.dsc
                edf47d357c6f36458474a1b537b88a12 711183 javacc_5.0.orig.tar.gz
                b3308a9aefeca4318a0838b2a3213cea 7893 javacc_5.0-5.debian.tar.gz
                Vcs-Browser: http://anonscm.debian.org/viewvc/pkg-java/trunk/javacc
                Vcs-Svn: svn://anonscm.debian.org/pkg-java/trunk/javacc
                Checksums-Sha1:
                f4a4ea175ce87af588c713eaab8caeaefc64183f 1397 javacc_5.0-5.dsc
                f6e12a183579a67528f351282251560faf4737db 711183 javacc_5.0.orig.tar.gz
                4aebf3cadecd96f304f80786f07473574569dc02 7893 javacc_5.0-5.debian.tar.gz
                Checksums-Sha256:
                4a61f89f984809964e3d63d159998ff29c951765a046ac87dca32b21eb54f99b 1397 javacc_5.0-5.dsc
                aab2c3e2f37648b9e708e6bad4c8b544cba63b66f1791907e6e3f89609b27150 711183 javacc_5.0.orig.tar.gz
                66418d91dc6c6d45d941181d08150d272d3db57a944f3ce61847e5e1ec7c0659 7893 javacc_5.0-5.debian.tar.gz
                Homepage: http://javacc.java.net
                Package-List:
                javacc deb java optional
                javacc-doc deb doc optional
                Directory: pool/main/j/javacc
                Priority: source
                Section: java


                apt-cache depends package_name




                Shows a listing of each dependency a package has and all the possible
                other packages that can fulfill that dependency.




                $ apt-cache depends javacc
                javacc
                |Depends: default-jre-headless
                |Depends: <java1-runtime-headless>
                gcj-4.8-jre-headless
                gcj-4.9-jre-headless
                gcj-jre-headless
                Depends: <java2-runtime-headless>
                default-jre-headless
                gcj-4.8-jre-headless
                gcj-4.9-jre-headless
                gcj-jre-headless
                openjdk-7-jre-headless
                openjdk-8-jre-headless
                Suggests: javacc-doc



                Testing environment



                $ lsb_release -a
                No LSB modules are available.
                Distributor ID: Debian
                Description: Debian GNU/Linux 8.6 (jessie)
                Release: 8.6
                Codename: jessie
                setivolkylany$/media/setivolkylany/WorkDisk/Private$ uname -a
                Linux localhost 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux


                Based on https://linux.die.net/man/8/apt-cache and http://manpages.ubuntu.com/manpages/zesty/man8/apt-cache.8.html






                share|improve this answer



























                  10















                  10











                  10









                  For similar tasks, the package management system ATP (the Advanced Package Tool) provide several solutions (https://en.wikipedia.org/wiki/Advanced_Packaging_Tool).




                  apt-cache showpkg package_name



                  Description taken from here https://linux.die.net/man/8/apt-cache




                  showpkg displays information about the packages listed on the command
                  line. Remaining arguments are package names. The available versions
                  and reverse
                  dependencies of each package listed are listed, as well as forward dependencies for each version. Forward (normal) dependencies
                  are those packages upon
                  which the package in question depends; reverse dependencies are those packages that depend upon the package in question. Thus,
                  forward dependencies must
                  be satisfied for a package, but reverse dependencies need not be. For instance, apt-cache showpkg libreadline2 would produce
                  output similar to the
                  following




                  $ apt-cache showpkg javacc
                  Package: javacc
                  Versions:
                  5.0-5 (/var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages) (/var/lib/apt/lists/httpredir.debian.org_debian_dists_jessie_main_binary-am)
                  Description Language:
                  File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages
                  MD5: 61505d89a764133cbd782b370c93fe98
                  Description Language: en
                  File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_i18n_Translation-en
                  MD5: 61505d89a764133cbd782b370c93fe98


                  Reverse Depends:
                  ant-optional,javacc
                  ant-optional,javacc
                  libjavacc-maven-plugin-java,javacc
                  javacc-doc,javacc
                  ant-optional,javacc
                  Dependencies:
                  5.0-5 - default-jre-headless (16 (null)) java1-runtime-headless (16 (null)) java2-runtime-headless (0 (null)) javacc-doc (0 (null))
                  Provides:
                  5.0-5 -
                  Reverse Provides:


                  apt-cache show package_name




                  Displays the package records for the named packages.




                  $ apt-cache show javacc
                  Package: javacc
                  Version: 5.0-5
                  Installed-Size: 380
                  Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
                  Architecture: all
                  Depends: default-jre-headless | java1-runtime-headless | java2-runtime-headless
                  Suggests: javacc-doc
                  Description-en: Parser generator for use with Java
                  Java Compiler-Compiler (JavaCC) is (according to sun)
                  "the most popular parser generator" for use with Java [tm]
                  applications.
                  .
                  A parser generator is a tool that reads a grammar specification
                  and converts it to a Java program that can recognize matches to
                  the grammar. In addition to the parser generator itself, JavaCC
                  provides other standard capabilities related to parser
                  generation such as tree building (via a tool called JJTree
                  included with JavaCC), actions, debugging, etc.
                  Description-md5: 61505d89a764133cbd782b370c93fe98
                  Homepage: http://javacc.java.net
                  Tag: devel::code-generator, devel::lang:java, implemented-in::java,
                  interface::commandline, role::program, scope::utility
                  Section: java
                  Priority: optional
                  Filename: pool/main/j/javacc/javacc_5.0-5_all.deb
                  Size: 284722
                  MD5sum: b1efd2defeba45cd97a48541235e6255
                  SHA1: c5e4b1991be06ec56e6d1a5b916c714068e5bf6b
                  SHA256: 757f9566d488858285c23c2ac12e05168af38953cf034f6e44123c2a88cb7c83


                  apt-cache policy package_name




                  This is meant to help debug issues relating to the preferences file.
                  With no arguments it will print out the priorities of each source.
                  Otherwise it prints out detailed information about the priority
                  selection of the named package.




                  $ apt-cache policy javacc
                  javacc:
                  Installed: (none)
                  Candidate: 5.0-5
                  Version table:
                  5.0-5 0
                  500 http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
                  500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages


                  apt-cache madison package_name




                  apt-cache's madison command attempts to mimic the output format and
                  a subset of the functionality of the Debian archive management
                  tool, madison. It displays available versions of a package in a
                  tabular format. Unlike the original madison, it can only display
                  information for the architecture for which APT has retrieved
                  package lists (APT::Architecture).




                  $ apt-cache madison javacc
                  javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
                  javacc | 5.0-5 | http://httpredir.debian.org/debian/ jessie/main amd64 Packages
                  javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main Sources


                  apt-cache showsrc package_name




                  Displays all the source package records that match the given package
                  names. All versions are shown, as well as all records that declare the
                  name to be a Binary.




                  $ apt-cache showsrc javacc
                  Package: javacc
                  Binary: javacc, javacc-doc
                  Version: 5.0-5
                  Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
                  Uploaders: Emmanuel Bourg <ebourg@apache.org>
                  Build-Depends: ant, debhelper (>= 7), cdbs (>= 0.4.5.3), default-jdk
                  Build-Depends-Indep: ant-optional, libxalan2-java, docbook-to-man, junit, maven-repo-helper
                  Architecture: all
                  Standards-Version: 3.9.4
                  Format: 3.0 (quilt)
                  Files:
                  6715506605c7a4e750309b7ef645ec86 1397 javacc_5.0-5.dsc
                  edf47d357c6f36458474a1b537b88a12 711183 javacc_5.0.orig.tar.gz
                  b3308a9aefeca4318a0838b2a3213cea 7893 javacc_5.0-5.debian.tar.gz
                  Vcs-Browser: http://anonscm.debian.org/viewvc/pkg-java/trunk/javacc
                  Vcs-Svn: svn://anonscm.debian.org/pkg-java/trunk/javacc
                  Checksums-Sha1:
                  f4a4ea175ce87af588c713eaab8caeaefc64183f 1397 javacc_5.0-5.dsc
                  f6e12a183579a67528f351282251560faf4737db 711183 javacc_5.0.orig.tar.gz
                  4aebf3cadecd96f304f80786f07473574569dc02 7893 javacc_5.0-5.debian.tar.gz
                  Checksums-Sha256:
                  4a61f89f984809964e3d63d159998ff29c951765a046ac87dca32b21eb54f99b 1397 javacc_5.0-5.dsc
                  aab2c3e2f37648b9e708e6bad4c8b544cba63b66f1791907e6e3f89609b27150 711183 javacc_5.0.orig.tar.gz
                  66418d91dc6c6d45d941181d08150d272d3db57a944f3ce61847e5e1ec7c0659 7893 javacc_5.0-5.debian.tar.gz
                  Homepage: http://javacc.java.net
                  Package-List:
                  javacc deb java optional
                  javacc-doc deb doc optional
                  Directory: pool/main/j/javacc
                  Priority: source
                  Section: java


                  apt-cache depends package_name




                  Shows a listing of each dependency a package has and all the possible
                  other packages that can fulfill that dependency.




                  $ apt-cache depends javacc
                  javacc
                  |Depends: default-jre-headless
                  |Depends: <java1-runtime-headless>
                  gcj-4.8-jre-headless
                  gcj-4.9-jre-headless
                  gcj-jre-headless
                  Depends: <java2-runtime-headless>
                  default-jre-headless
                  gcj-4.8-jre-headless
                  gcj-4.9-jre-headless
                  gcj-jre-headless
                  openjdk-7-jre-headless
                  openjdk-8-jre-headless
                  Suggests: javacc-doc



                  Testing environment



                  $ lsb_release -a
                  No LSB modules are available.
                  Distributor ID: Debian
                  Description: Debian GNU/Linux 8.6 (jessie)
                  Release: 8.6
                  Codename: jessie
                  setivolkylany$/media/setivolkylany/WorkDisk/Private$ uname -a
                  Linux localhost 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux


                  Based on https://linux.die.net/man/8/apt-cache and http://manpages.ubuntu.com/manpages/zesty/man8/apt-cache.8.html






                  share|improve this answer














                  For similar tasks, the package management system ATP (the Advanced Package Tool) provide several solutions (https://en.wikipedia.org/wiki/Advanced_Packaging_Tool).




                  apt-cache showpkg package_name



                  Description taken from here https://linux.die.net/man/8/apt-cache




                  showpkg displays information about the packages listed on the command
                  line. Remaining arguments are package names. The available versions
                  and reverse
                  dependencies of each package listed are listed, as well as forward dependencies for each version. Forward (normal) dependencies
                  are those packages upon
                  which the package in question depends; reverse dependencies are those packages that depend upon the package in question. Thus,
                  forward dependencies must
                  be satisfied for a package, but reverse dependencies need not be. For instance, apt-cache showpkg libreadline2 would produce
                  output similar to the
                  following




                  $ apt-cache showpkg javacc
                  Package: javacc
                  Versions:
                  5.0-5 (/var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages) (/var/lib/apt/lists/httpredir.debian.org_debian_dists_jessie_main_binary-am)
                  Description Language:
                  File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_binary-amd64_Packages
                  MD5: 61505d89a764133cbd782b370c93fe98
                  Description Language: en
                  File: /var/lib/apt/lists/ftp.ru.debian.org_debian_dists_jessie_main_i18n_Translation-en
                  MD5: 61505d89a764133cbd782b370c93fe98


                  Reverse Depends:
                  ant-optional,javacc
                  ant-optional,javacc
                  libjavacc-maven-plugin-java,javacc
                  javacc-doc,javacc
                  ant-optional,javacc
                  Dependencies:
                  5.0-5 - default-jre-headless (16 (null)) java1-runtime-headless (16 (null)) java2-runtime-headless (0 (null)) javacc-doc (0 (null))
                  Provides:
                  5.0-5 -
                  Reverse Provides:


                  apt-cache show package_name




                  Displays the package records for the named packages.




                  $ apt-cache show javacc
                  Package: javacc
                  Version: 5.0-5
                  Installed-Size: 380
                  Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
                  Architecture: all
                  Depends: default-jre-headless | java1-runtime-headless | java2-runtime-headless
                  Suggests: javacc-doc
                  Description-en: Parser generator for use with Java
                  Java Compiler-Compiler (JavaCC) is (according to sun)
                  "the most popular parser generator" for use with Java [tm]
                  applications.
                  .
                  A parser generator is a tool that reads a grammar specification
                  and converts it to a Java program that can recognize matches to
                  the grammar. In addition to the parser generator itself, JavaCC
                  provides other standard capabilities related to parser
                  generation such as tree building (via a tool called JJTree
                  included with JavaCC), actions, debugging, etc.
                  Description-md5: 61505d89a764133cbd782b370c93fe98
                  Homepage: http://javacc.java.net
                  Tag: devel::code-generator, devel::lang:java, implemented-in::java,
                  interface::commandline, role::program, scope::utility
                  Section: java
                  Priority: optional
                  Filename: pool/main/j/javacc/javacc_5.0-5_all.deb
                  Size: 284722
                  MD5sum: b1efd2defeba45cd97a48541235e6255
                  SHA1: c5e4b1991be06ec56e6d1a5b916c714068e5bf6b
                  SHA256: 757f9566d488858285c23c2ac12e05168af38953cf034f6e44123c2a88cb7c83


                  apt-cache policy package_name




                  This is meant to help debug issues relating to the preferences file.
                  With no arguments it will print out the priorities of each source.
                  Otherwise it prints out detailed information about the priority
                  selection of the named package.




                  $ apt-cache policy javacc
                  javacc:
                  Installed: (none)
                  Candidate: 5.0-5
                  Version table:
                  5.0-5 0
                  500 http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
                  500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages


                  apt-cache madison package_name




                  apt-cache's madison command attempts to mimic the output format and
                  a subset of the functionality of the Debian archive management
                  tool, madison. It displays available versions of a package in a
                  tabular format. Unlike the original madison, it can only display
                  information for the architecture for which APT has retrieved
                  package lists (APT::Architecture).




                  $ apt-cache madison javacc
                  javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main amd64 Packages
                  javacc | 5.0-5 | http://httpredir.debian.org/debian/ jessie/main amd64 Packages
                  javacc | 5.0-5 | http://ftp.ru.debian.org/debian/ jessie/main Sources


                  apt-cache showsrc package_name




                  Displays all the source package records that match the given package
                  names. All versions are shown, as well as all records that declare the
                  name to be a Binary.




                  $ apt-cache showsrc javacc
                  Package: javacc
                  Binary: javacc, javacc-doc
                  Version: 5.0-5
                  Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
                  Uploaders: Emmanuel Bourg <ebourg@apache.org>
                  Build-Depends: ant, debhelper (>= 7), cdbs (>= 0.4.5.3), default-jdk
                  Build-Depends-Indep: ant-optional, libxalan2-java, docbook-to-man, junit, maven-repo-helper
                  Architecture: all
                  Standards-Version: 3.9.4
                  Format: 3.0 (quilt)
                  Files:
                  6715506605c7a4e750309b7ef645ec86 1397 javacc_5.0-5.dsc
                  edf47d357c6f36458474a1b537b88a12 711183 javacc_5.0.orig.tar.gz
                  b3308a9aefeca4318a0838b2a3213cea 7893 javacc_5.0-5.debian.tar.gz
                  Vcs-Browser: http://anonscm.debian.org/viewvc/pkg-java/trunk/javacc
                  Vcs-Svn: svn://anonscm.debian.org/pkg-java/trunk/javacc
                  Checksums-Sha1:
                  f4a4ea175ce87af588c713eaab8caeaefc64183f 1397 javacc_5.0-5.dsc
                  f6e12a183579a67528f351282251560faf4737db 711183 javacc_5.0.orig.tar.gz
                  4aebf3cadecd96f304f80786f07473574569dc02 7893 javacc_5.0-5.debian.tar.gz
                  Checksums-Sha256:
                  4a61f89f984809964e3d63d159998ff29c951765a046ac87dca32b21eb54f99b 1397 javacc_5.0-5.dsc
                  aab2c3e2f37648b9e708e6bad4c8b544cba63b66f1791907e6e3f89609b27150 711183 javacc_5.0.orig.tar.gz
                  66418d91dc6c6d45d941181d08150d272d3db57a944f3ce61847e5e1ec7c0659 7893 javacc_5.0-5.debian.tar.gz
                  Homepage: http://javacc.java.net
                  Package-List:
                  javacc deb java optional
                  javacc-doc deb doc optional
                  Directory: pool/main/j/javacc
                  Priority: source
                  Section: java


                  apt-cache depends package_name




                  Shows a listing of each dependency a package has and all the possible
                  other packages that can fulfill that dependency.




                  $ apt-cache depends javacc
                  javacc
                  |Depends: default-jre-headless
                  |Depends: <java1-runtime-headless>
                  gcj-4.8-jre-headless
                  gcj-4.9-jre-headless
                  gcj-jre-headless
                  Depends: <java2-runtime-headless>
                  default-jre-headless
                  gcj-4.8-jre-headless
                  gcj-4.9-jre-headless
                  gcj-jre-headless
                  openjdk-7-jre-headless
                  openjdk-8-jre-headless
                  Suggests: javacc-doc



                  Testing environment



                  $ lsb_release -a
                  No LSB modules are available.
                  Distributor ID: Debian
                  Description: Debian GNU/Linux 8.6 (jessie)
                  Release: 8.6
                  Codename: jessie
                  setivolkylany$/media/setivolkylany/WorkDisk/Private$ uname -a
                  Linux localhost 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux


                  Based on https://linux.die.net/man/8/apt-cache and http://manpages.ubuntu.com/manpages/zesty/man8/apt-cache.8.html







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                  answered Feb 16 '17 at 9:34









                  PADYMKOPADYMKO

                  2933 silver badges6 bronze badges




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                      0



















                      For those just looking for a basic summary of the package :



                      apt-cache search ^package-name$





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                        For those just looking for a basic summary of the package :



                        apt-cache search ^package-name$





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                          0















                          0











                          0









                          For those just looking for a basic summary of the package :



                          apt-cache search ^package-name$





                          share|improve this answer














                          For those just looking for a basic summary of the package :



                          apt-cache search ^package-name$






                          share|improve this answer













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                          answered Jul 18 at 19:35









                          Mike QMike Q

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