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Re^3: Regex and writing lines in file

by Random_Walk (Prior)
on May 01, 2013 at 11:38 UTC ( [id://1031550]=note: print w/replies, xml ) Need Help??


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.

Pereant, qui ante nos nostra dixerunt!

Replies are listed 'Best First'.
Re^4: Regex and writing lines in file
by amma (Novice) on May 01, 2013 at 17:55 UTC

    Partially worked for me. Thank you!

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