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Full Discussion: Add 5 lines of code to all the scripts in a directory
Top Forums Shell Programming and Scripting Add 5 lines of code to all the scripts in a directory Post 302354582 by KenJackson on Friday 18th of September 2009 05:00:33 PM
Old 09-18-2009
If you want to use sed, something like this will work.

It looks for the first line containing the word 'special' and replaces the whole line with a five-line 'if' statement.

Of course, I'm using GNU sed, which recognizes the -i switch. Not all versions of sed do. And I'm not sure all seds recognize the \n sequence.
Code:
#!/bin/sh
cd script-directory
for f in *; do
    test ! -x "$f"  &&  continue
    sed -i '/special/ s/^.*$/if \[ "$a" = 1 \]; then\necho "1"\necho "2"\necho "3"\nfi/;q' "$f"
done

 

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DH_INSTALLDEB(1)						     Debhelper							  DH_INSTALLDEB(1)

NAME

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8.9.0ubuntu2.1							    2012-06-12							  DH_INSTALLDEB(1)
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