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Shell Programming and Scripting

Search a string and to add another string after that in new line

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# 1  
Old 02-14-2012
Search a string and to add another string after that in new line
Hi Guys
I am facing a problemSmilie
In searching a string in a file and to add another string(ie. passed through command line argument) just after this(searched) string in new line.
Thanks
# 2  
Old 02-14-2012
Code:
x="string_to_add"
sed "s/string_string/& $x /g" inputfile

# 3  
Old 02-14-2012
In nawk ..
Code:
$ nawk '{sub(/search_string/,"&\nnew_string")};1' infile

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