my $file1="file1.txt"; open FILE1, "<$file1" or die $!; my $file2="min_viols_endpointSorted.csv"; open FILE2, ">$file2" or die $!; while(){ my $path = $_; $path =~ /([^\s]+)/; $path = $1; #Extracting path chop($path); my $slack = $_; $slack =~ /[^\f+][\s+][\f+][\s+][\f+][\s+]([\f+]+)[\s](VIOLATED)/; $slack = $1; print "$slack\n"; chop($slack); print FILE2 "$path $slack\n"; }