in reply to Prepend Evey Line in a File

This will modify your file and leave a copy of the original in filename.csv.bak

perl -ni.bak -e 'print "PREFIX $_"' filename.csv

Dogma is stupid.

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Re^2: Prepend Evey Line in a File
by blazar (Canon) on Feb 03, 2006 at 13:16 UTC 
    perl -pi.bak -e '$_="PREFIX $_"' filename.csv
perl -pi.bak -e 's/^/PREFIX /' filename.csv

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