What do you mean by "chomp [is] not working"? chomp removes \n (or whatever $/ holds) form the end of the string, if present.

I'd say the likelyhood of chomp not working is nil. The following questions should help you find the real problem:

• Does $/ contain \n (and just that)?
  Test: die("Bad \$/\n") if $/ ne "\n";
• Does the string end with \n?
  Test: die("String doesn't end with \\n\n") if $line !~ /\n\z/;
• Is there only one \n at the end of the string?
  Test: die("String has multiple \\n\n") if $line =~ /\n.*\n/s;
• Are you sure there isn't any other special characters (such as \r) at the end of the string or before the \n?
  Test: die("String has \\r\n") if $line =~ /\r/;

Update: Added test snippets.

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