hey monks, so im still fairly new to perl and have a simple problem i cant seem to figure out. So basically this script will read a specific file, look for a string using reg ex, and swap the match with another string. i can get it to compile but doesn't seem to modify the file at all.

open IN,"<filename.txt" or die "Could not open file : $! \n";
my $step_num = 0;

  while (<IN>) {
    if (/-----------step [\d]\./){
        $step_num ++;
        s/-----------step \d\./-----------step $_\.$step_num/;
        }
  }
close IN;

[download]

the result im looking for is this.... from -----------step 1.

to this -----------step 1.1

next occurence in file -----------step 1.2

next occurence in file -----------step 1.3

In reply to Modifying a file using RegEx by gotsilk

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