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Old 02-20-2013, 02:16 AM   #1
nitya
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Registered: Feb 2013
Location: India
Distribution: RedHat, Cent, Fedora, Ubuntu
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bash to print words/lines vertically


Hi All,
How can I print the below supplementary groups vertically,
Code:
$ id -Gn nitya
Admin apache cvs
The output I am expecting as
Code:
Admin
apache
cvs
Thanks in advance for your kind help.
 
Old 02-20-2013, 02:29 AM   #2
RaviTezu
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Hi nitya,
Quote:
id -Gn nitya | perl -pi -w -e "s/\ /`echo "\n"`/g"
Probably you can use the above command. However there will be other commands which can do the required work in more easiest way. You can wait for other people comments here if you want.
 
2 members found this post helpful.
Old 02-20-2013, 02:41 AM   #3
kooru
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Code:
for i in $(id -Gn nitya) ;do echo $i; done
 
2 members found this post helpful.
Old 02-20-2013, 02:43 AM   #4
nitya
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Dear RaviTezu,
Code:
id -Gn nitya | perl -pi -w -e "s/\ /`echo "\n"`/g"
Excellent, The above command worked great, But since I don't know about perl I couldn't understand "perl -pi -w -e "s/\ /`echo "\n"`/g"", if you possible could you please expain the perl arguments.
Thank you very much.
 
Old 02-20-2013, 02:48 AM   #5
nitya
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Registered: Feb 2013
Location: India
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Original Poster
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Quote:
Originally Posted by kooru View Post
Code:
for i in $(id -Gn nitya) ;do echo $i; done
Dear kooru, Excellent. this is what I was expecting. You both solved my problem.
Once again thank you all.
 
Old 02-20-2013, 06:04 AM   #6
RaviTezu
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Have a look at perl man page & Here
 
Old 02-20-2013, 06:19 AM   #7
linosaurusroot
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id -Gn nitya | xargs -n1
 
  


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