http://www.perlmonks.org?node_id=848920


in reply to Extracting text from a line

You try this.It is similar to almut's answer but we don't know whether there will be space between UID: and string.Following will solve that problem and it works.

#!usr/bin/perl use strict; use warnings; my @input = ("Supervisor UID: plbaerr4", "UID:dlsmith3", "Peon UID: jklmn2"); open FH,">output.txt" or die "can't open file for writing:$!"; for my $string (@input) { print FH $1 if($string=~/^UID:\s*(\w+)/); } close FH;