Unix Tip #4475- June 12, 2013


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INSERTING LINES WITHIN SCRIPTS



If you want to insert a line
at the top (or anywhere for
that matter) of a file within
a shell script, use the ed editor.

EXAMPLE:

string="hello"
ed << EOF
e any_file
1i
${string}

NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


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