in reply to Re^2: Regex and writing lines in file
in thread Regex and writing lines in file
You have now substituted within the $data variable. Next you need to write the contents of $data back to the file. Try adding something like this after the substitution
# untested seek $fh, 0, 0; # rewind to the start of the file print $fh $data; # Write the entire file close $fh;
Of course this may not be very efficient if you have a large file to alter, but then inserting into the middle of a very big file never is. If you are frequently updating random records in a file you may need to start thinking about using a database.
Cheers,
R.
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Re^4: Regex and writing lines in file
by amma (Novice) on May 01, 2013 at 17:55 UTC |