why this command using pipe doesn't work?why my bash script only outputs one line on echoing awk variableA pipe command doesn't workWhy doesn't the command “ls | file” work?Move and rename files that have no name extensionexample of console output that is not written to standard outputawk - comparing 2 columns of 2 files and print common linesHow to search the file content in a directory for a certain pattern then return (redirect) the filename to another file?If I’m trying to run the same script in ten different directories in a row, will this way work and is there a more concise command sequence?Unable to update variable in bash script
How can different packages have identical source code?
Problem with a commutative diagram
Is This Constraint Convex?
Length-terminated sequences
Holding cost vs carrying cost vs storage cost
Why are Buddhist concepts so difficult?
How to handle a player wanting to use remote access on a android PC?
Is it safe to plug one travel adapter into another?
Intuition for the derivative of the exponential function
How to write 2**n - 1 as a recursive function?
Is there a name for the phenomenon of false positives counterintuitively outstripping true positives
Explanation for why nickel turns green in hydrochloric acid
Would there be a difference between boiling whole black peppercorns or fine ground black pepp in a stew?
Employer says they want Quality & Quantity, but only pays bonuses based on the latter
Why doesn't the nucleus have "nucleus-probability cloud"?
Can you catch the thief?
What does "Summoned creature has maximum hit points" actually mean?
Do European politicians typically put their pronouns on their social media pages?
What can I wear to avoid getting frisked and crotch searched by TSA at the airport?
Princesses covering an 8x8 chess board
How to record this drawing effect?
How can a signal be both periodic and random?
Is it OK to call company for more details about a job post (not an application)?
How can I increase the rate of regeneration in humans without the possibility of tumors developing?
why this command using pipe doesn't work?
why my bash script only outputs one line on echoing awk variableA pipe command doesn't workWhy doesn't the command “ls | file” work?Move and rename files that have no name extensionexample of console output that is not written to standard outputawk - comparing 2 columns of 2 files and print common linesHow to search the file content in a directory for a certain pattern then return (redirect) the filename to another file?If I’m trying to run the same script in ten different directories in a row, will this way work and is there a more concise command sequence?Unable to update variable in bash script
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty
margin-bottom:0;
Why does find . | cat works (printing all the files names) but find . | file -i doesn't work for showing all files mime type?
shouldn't it work since there is an output from find . and an input from file -i?
(Sorry if this is a stupid question, I'm a beginner using bash and I couldn't find another question that could explain this to me)
command-line bash
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
add a comment
|
Why does find . | cat works (printing all the files names) but find . | file -i doesn't work for showing all files mime type?
shouldn't it work since there is an output from find . and an input from file -i?
(Sorry if this is a stupid question, I'm a beginner using bash and I couldn't find another question that could explain this to me)
command-line bash
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
add a comment
|
Why does find . | cat works (printing all the files names) but find . | file -i doesn't work for showing all files mime type?
shouldn't it work since there is an output from find . and an input from file -i?
(Sorry if this is a stupid question, I'm a beginner using bash and I couldn't find another question that could explain this to me)
command-line bash
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
Why does find . | cat works (printing all the files names) but find . | file -i doesn't work for showing all files mime type?
shouldn't it work since there is an output from find . and an input from file -i?
(Sorry if this is a stupid question, I'm a beginner using bash and I couldn't find another question that could explain this to me)
command-line bash
command-line bash
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
asked May 29 at 14:45
Leonardo Meinerz RamosLeonardo Meinerz Ramos
31 bronze badge
31 bronze badge
add a comment
|
add a comment
|
1 Answer
1
active
oldest
votes
With a pipe, the command on the right-hand side reads the data on its stdin channel. The file command requires the files to be command line arguments, not data on stdin.
This is exactly what the xargs command is for: read from stdin, and provide the data as command line arguments:
find . | xargs file -i
Or, use the -f option for file:
find . | file -i -f -
Read the man pages for more details.
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
add a comment
|
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "89"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/4.0/"u003ecc by-sa 4.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1147145%2fwhy-this-command-using-pipe-doesnt-work%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
With a pipe, the command on the right-hand side reads the data on its stdin channel. The file command requires the files to be command line arguments, not data on stdin.
This is exactly what the xargs command is for: read from stdin, and provide the data as command line arguments:
find . | xargs file -i
Or, use the -f option for file:
find . | file -i -f -
Read the man pages for more details.
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
add a comment
|
With a pipe, the command on the right-hand side reads the data on its stdin channel. The file command requires the files to be command line arguments, not data on stdin.
This is exactly what the xargs command is for: read from stdin, and provide the data as command line arguments:
find . | xargs file -i
Or, use the -f option for file:
find . | file -i -f -
Read the man pages for more details.
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
add a comment
|
With a pipe, the command on the right-hand side reads the data on its stdin channel. The file command requires the files to be command line arguments, not data on stdin.
This is exactly what the xargs command is for: read from stdin, and provide the data as command line arguments:
find . | xargs file -i
Or, use the -f option for file:
find . | file -i -f -
Read the man pages for more details.
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
With a pipe, the command on the right-hand side reads the data on its stdin channel. The file command requires the files to be command line arguments, not data on stdin.
This is exactly what the xargs command is for: read from stdin, and provide the data as command line arguments:
find . | xargs file -i
Or, use the -f option for file:
find . | file -i -f -
Read the man pages for more details.
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
edited May 29 at 15:49
αғsнιη
26.1k23 gold badges105 silver badges168 bronze badges
26.1k23 gold badges105 silver badges168 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
answered May 29 at 14:49
glenn jackmanglenn jackman
13.3k27 silver badges47 bronze badges
13.3k27 silver badges47 bronze badges
add a comment
|
add a comment
|
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1147145%2fwhy-this-command-using-pipe-doesnt-work%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
