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Using sed for multiple matches instead matching whole file


How do I combine all lines in a text file into a single line?'tail' command not getting only the new linesUsing Ubuntu command line to replace text in huge fileretain white spaces in fields when using awkdiffrence between two files of different row numbersModify a list: filter it, and rearrange the values in the resultError while using sed fileRemoving multiple space using sedRemove exact matching word using sedWhat's wrong with this backup script?






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








0















I have file as 



0::question#1::
Love
giberrish fdfd

1::anything#2:
Is
repeat

22::anything#3::
Lie


I want to extract



Love
giberish
****
Is 
repeat
****
Lie


cat file.txt | sed 's/::n([^n]*)/1/g'



I'm getting file as



0::question#1::
Love

1::anything#2:
Is

22::anything#3::
Lie


On testing regex is matching here
https://regex101.com/



UPDATE
I missed to tell, that file extract is for for multi-line not single line and also i want a deliminator as well. I apologize for trouble



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*//g;/^$/d'



I get output as



Love
giberrish fdfd
Is
repeat 2 4 4
Lie


So I added some deliminator in order to split one record from another



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/***/g;/^$/d'



and got 



 ***
Love
giberrish fdfd
 ***
Is
repeat 2 4 4
 ***
Lie


To remove top-line i used



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2



new output is 



 Love
 giberrish fdfd
 ***
 Is
 repeat 2 4 4
 ***
 Lie


I want to capture each record using awk i did



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "***" print $1'



I get output



Love
giberrish fdfd


I'm unable to remove last empty line which is same across all fields i tried using pipe to sed with /^$/d didn't work



UPDATE 2
got it working by



``sed 's/^.::.//g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "" print $1' | sed -e '/^$/d'`






command-line bash sed







share|improve this question



















  • 1





    Try this sed 's/^.*::.*//g' data.txt !

    – George Udosen
    2 days ago











  • It works, splendid, pls have it as answer so i can approve it

    – asadz
    2 days ago











  • This works better sed -e '/^.*::.*/d' -e '/^$/d' data.txt

    – George Udosen
    2 days ago


















0















I have file as 



0::question#1::
Love
giberrish fdfd

1::anything#2:
Is
repeat

22::anything#3::
Lie


I want to extract



Love
giberish
****
Is 
repeat
****
Lie


cat file.txt | sed 's/::n([^n]*)/1/g'



I'm getting file as



0::question#1::
Love

1::anything#2:
Is

22::anything#3::
Lie


On testing regex is matching here
https://regex101.com/



UPDATE
I missed to tell, that file extract is for for multi-line not single line and also i want a deliminator as well. I apologize for trouble



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*//g;/^$/d'



I get output as



Love
giberrish fdfd
Is
repeat 2 4 4
Lie


So I added some deliminator in order to split one record from another



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/***/g;/^$/d'



and got 



 ***
Love
giberrish fdfd
 ***
Is
repeat 2 4 4
 ***
Lie


To remove top-line i used



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2



new output is 



 Love
 giberrish fdfd
 ***
 Is
 repeat 2 4 4
 ***
 Lie


I want to capture each record using awk i did



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "***" print $1'



I get output



Love
giberrish fdfd


I'm unable to remove last empty line which is same across all fields i tried using pipe to sed with /^$/d didn't work



UPDATE 2
got it working by



``sed 's/^.::.//g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "" print $1' | sed -e '/^$/d'`






command-line bash sed







share|improve this question



















  • 1





    Try this sed 's/^.*::.*//g' data.txt !

    – George Udosen
    2 days ago











  • It works, splendid, pls have it as answer so i can approve it

    – asadz
    2 days ago











  • This works better sed -e '/^.*::.*/d' -e '/^$/d' data.txt

    – George Udosen
    2 days ago














0












0








0








I have file as 



0::question#1::
Love
giberrish fdfd

1::anything#2:
Is
repeat

22::anything#3::
Lie


I want to extract



Love
giberish
****
Is 
repeat
****
Lie


cat file.txt | sed 's/::n([^n]*)/1/g'



I'm getting file as



0::question#1::
Love

1::anything#2:
Is

22::anything#3::
Lie


On testing regex is matching here
https://regex101.com/



UPDATE
I missed to tell, that file extract is for for multi-line not single line and also i want a deliminator as well. I apologize for trouble



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*//g;/^$/d'



I get output as



Love
giberrish fdfd
Is
repeat 2 4 4
Lie


So I added some deliminator in order to split one record from another



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/***/g;/^$/d'



and got 



 ***
Love
giberrish fdfd
 ***
Is
repeat 2 4 4
 ***
Lie


To remove top-line i used



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2



new output is 



 Love
 giberrish fdfd
 ***
 Is
 repeat 2 4 4
 ***
 Lie


I want to capture each record using awk i did



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "***" print $1'



I get output



Love
giberrish fdfd


I'm unable to remove last empty line which is same across all fields i tried using pipe to sed with /^$/d didn't work



UPDATE 2
got it working by



``sed 's/^.::.//g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "" print $1' | sed -e '/^$/d'`






command-line bash sed







share|improve this question
















I have file as 



0::question#1::
Love
giberrish fdfd

1::anything#2:
Is
repeat

22::anything#3::
Lie


I want to extract



Love
giberish
****
Is 
repeat
****
Lie


cat file.txt | sed 's/::n([^n]*)/1/g'



I'm getting file as



0::question#1::
Love

1::anything#2:
Is

22::anything#3::
Lie


On testing regex is matching here
https://regex101.com/



UPDATE
I missed to tell, that file extract is for for multi-line not single line and also i want a deliminator as well. I apologize for trouble



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*//g;/^$/d'



I get output as



Love
giberrish fdfd
Is
repeat 2 4 4
Lie


So I added some deliminator in order to split one record from another



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/***/g;/^$/d'



and got 



 ***
Love
giberrish fdfd
 ***
Is
repeat 2 4 4
 ***
Lie


To remove top-line i used



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2



new output is 



 Love
 giberrish fdfd
 ***
 Is
 repeat 2 4 4
 ***
 Lie


I want to capture each record using awk i did



cat org_op.2019.04.06-09.43.59 | sed 's/^.*::.*/ ***/g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "***" print $1'



I get output



Love
giberrish fdfd


I'm unable to remove last empty line which is same across all fields i tried using pipe to sed with /^$/d didn't work



UPDATE 2
got it working by



``sed 's/^.::.//g;/^$/d' | tail -n +2 | awk 'BEGIN RS = "" ; FS = "" print $1' | sed -e '/^$/d'`






command-line bash sed




command-line bash sed






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited yesterday







asadz

















asked 2 days ago









asadzasadz

137113




137113







  • 1





    Try this sed 's/^.*::.*//g' data.txt !

    – George Udosen
    2 days ago











  • It works, splendid, pls have it as answer so i can approve it

    – asadz
    2 days ago











  • This works better sed -e '/^.*::.*/d' -e '/^$/d' data.txt

    – George Udosen
    2 days ago













  • 1





    Try this sed 's/^.*::.*//g' data.txt !

    – George Udosen
    2 days ago











  • It works, splendid, pls have it as answer so i can approve it

    – asadz
    2 days ago











  • This works better sed -e '/^.*::.*/d' -e '/^$/d' data.txt

    – George Udosen
    2 days ago








1




1





Try this sed 's/^.*::.*//g' data.txt !

– George Udosen
2 days ago





Try this sed 's/^.*::.*//g' data.txt !

– George Udosen
2 days ago













It works, splendid, pls have it as answer so i can approve it

– asadz
2 days ago





It works, splendid, pls have it as answer so i can approve it

– asadz
2 days ago













This works better sed -e '/^.*::.*/d' -e '/^$/d' data.txt

– George Udosen
2 days ago






This works better sed -e '/^.*::.*/d' -e '/^$/d' data.txt

– George Udosen
2 days ago











2 Answers
2






active

oldest

votes


















1














Use the method of matching lines then remnove those matching lines and then remove the spaces...



sed -e '/^.*::.*/d' -e '/^$/d' data.txt


Result:



Love
Is
Lie


Or a shorter version:



sed -E '/^(.*::.*)?$/d'


Info:




  • '/^.*::.*/d': Match lines with :: and delete them


  • '/^$/d': Remove all blank lines





share|improve this answer




















  • 2





    /::/d is a shorter version of your first expression, combined that is: sed -E '/^(.*::.*)?$/d'

    – dessert
    2 days ago







  • 1





    interesting didn't know i could use ? like that!

    – George Udosen
    2 days ago











  • please see update!

    – asadz
    2 days ago


















2














sed '/^[0-9]/d; /^$/d' file.txt
Love
Is
Lie



  • /^[0-9]/d: remove lines starting with a number


  • /^$/d: remove empty lines





share|improve this answer


















  • 1





    To combine both in one expression: sed -E '/^([0-9].*)?$/d'

    – dessert
    2 days ago











Your Answer








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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














Use the method of matching lines then remnove those matching lines and then remove the spaces...



sed -e '/^.*::.*/d' -e '/^$/d' data.txt


Result:



Love
Is
Lie


Or a shorter version:



sed -E '/^(.*::.*)?$/d'


Info:




  • '/^.*::.*/d': Match lines with :: and delete them


  • '/^$/d': Remove all blank lines





share|improve this answer




















  • 2





    /::/d is a shorter version of your first expression, combined that is: sed -E '/^(.*::.*)?$/d'

    – dessert
    2 days ago







  • 1





    interesting didn't know i could use ? like that!

    – George Udosen
    2 days ago











  • please see update!

    – asadz
    2 days ago















1














Use the method of matching lines then remnove those matching lines and then remove the spaces...



sed -e '/^.*::.*/d' -e '/^$/d' data.txt


Result:



Love
Is
Lie


Or a shorter version:



sed -E '/^(.*::.*)?$/d'


Info:




  • '/^.*::.*/d': Match lines with :: and delete them


  • '/^$/d': Remove all blank lines





share|improve this answer




















  • 2





    /::/d is a shorter version of your first expression, combined that is: sed -E '/^(.*::.*)?$/d'

    – dessert
    2 days ago







  • 1





    interesting didn't know i could use ? like that!

    – George Udosen
    2 days ago











  • please see update!

    – asadz
    2 days ago













1












1








1







Use the method of matching lines then remnove those matching lines and then remove the spaces...



sed -e '/^.*::.*/d' -e '/^$/d' data.txt


Result:



Love
Is
Lie


Or a shorter version:



sed -E '/^(.*::.*)?$/d'


Info:




  • '/^.*::.*/d': Match lines with :: and delete them


  • '/^$/d': Remove all blank lines





share|improve this answer















Use the method of matching lines then remnove those matching lines and then remove the spaces...



sed -e '/^.*::.*/d' -e '/^$/d' data.txt


Result:



Love
Is
Lie


Or a shorter version:



sed -E '/^(.*::.*)?$/d'


Info:




  • '/^.*::.*/d': Match lines with :: and delete them


  • '/^$/d': Remove all blank lines






share|improve this answer














share|improve this answer



share|improve this answer








edited 2 days ago

























answered 2 days ago









George UdosenGeorge Udosen

21.7k104572




21.7k104572







  • 2





    /::/d is a shorter version of your first expression, combined that is: sed -E '/^(.*::.*)?$/d'

    – dessert
    2 days ago







  • 1





    interesting didn't know i could use ? like that!

    – George Udosen
    2 days ago











  • please see update!

    – asadz
    2 days ago












  • 2





    /::/d is a shorter version of your first expression, combined that is: sed -E '/^(.*::.*)?$/d'

    – dessert
    2 days ago







  • 1





    interesting didn't know i could use ? like that!

    – George Udosen
    2 days ago











  • please see update!

    – asadz
    2 days ago







2




2





/::/d is a shorter version of your first expression, combined that is: sed -E '/^(.*::.*)?$/d'

– dessert
2 days ago






/::/d is a shorter version of your first expression, combined that is: sed -E '/^(.*::.*)?$/d'

– dessert
2 days ago





1




1





interesting didn't know i could use ? like that!

– George Udosen
2 days ago





interesting didn't know i could use ? like that!

– George Udosen
2 days ago













please see update!

– asadz
2 days ago





please see update!

– asadz
2 days ago













2














sed '/^[0-9]/d; /^$/d' file.txt
Love
Is
Lie



  • /^[0-9]/d: remove lines starting with a number


  • /^$/d: remove empty lines





share|improve this answer


















  • 1





    To combine both in one expression: sed -E '/^([0-9].*)?$/d'

    – dessert
    2 days ago















2














sed '/^[0-9]/d; /^$/d' file.txt
Love
Is
Lie



  • /^[0-9]/d: remove lines starting with a number


  • /^$/d: remove empty lines





share|improve this answer


















  • 1





    To combine both in one expression: sed -E '/^([0-9].*)?$/d'

    – dessert
    2 days ago













2












2








2







sed '/^[0-9]/d; /^$/d' file.txt
Love
Is
Lie



  • /^[0-9]/d: remove lines starting with a number


  • /^$/d: remove empty lines





share|improve this answer













sed '/^[0-9]/d; /^$/d' file.txt
Love
Is
Lie



  • /^[0-9]/d: remove lines starting with a number


  • /^$/d: remove empty lines






share|improve this answer












share|improve this answer



share|improve this answer










answered 2 days ago









Mikael FloraMikael Flora

441117




441117







  • 1





    To combine both in one expression: sed -E '/^([0-9].*)?$/d'

    – dessert
    2 days ago












  • 1





    To combine both in one expression: sed -E '/^([0-9].*)?$/d'

    – dessert
    2 days ago







1




1





To combine both in one expression: sed -E '/^([0-9].*)?$/d'

– dessert
2 days ago





To combine both in one expression: sed -E '/^([0-9].*)?$/d'

– dessert
2 days ago

















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