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sed to find first appearance and append string

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# 1  
Old 02-14-2011
sed to find first appearance and append string
I have a file like below

Code:
#GROUP A belongs to Asia
GROUP A jojh hans local admin
GROUP A gege fans michel jing jong

#GROUP U belongs to USA
GROUP U jeff goal hello world

My requirement is to grep for first apperence of GROUP A which is not commented and append my name to end of file.
I tried the below...but it is appending to each line where GROUP A is there.

Code:
sed '/GROUP A/s/$/ vkk/' $i > $i.new

Last edited by pludi; 02-14-2011 at 08:38 AM.. Reason: please use code tags
# 2  
Old 02-14-2011
Code:
sed '/^GROUP A/!d;s/$/ vkk/;q' $i >$i.new

# 3  
Old 02-14-2011
Thanks. But that is deleting all my other lines and displaying only that line alone. I need the file as such. Smilie

Is that because of "!d" in the command??
# 4  
Old 02-14-2011
Pls post the output you intend
# 5  
Old 02-14-2011
Please find the output below i want my name to be there without deleting any line of the file.

#GROUP A belongs to Asia
GROUP A jojh hans local admin vkk
GROUP A gege fans michel jing jong

#GROUP U belongs to USA
GROUP U jeff goal hello world
# 6  
Old 02-14-2011
Try this,
Code:
sed  '0,/^\(GROUP A\)\(.*\)/s//\1\2 vkk/' infile

# 7  
Old 02-14-2011
Should use awk instead of sed.

smthg like

Code:
nawk '/^GROUP A/&&!f{sub(/$/," vkk",$0);f=1}1' $i > $i.new

Last edited by ctsgnb; 02-14-2011 at 09:12 AM..
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