When your code is made runnable (see below), it works fine. Be sure to use strictures (the strict, warnings, and maybe diagnostics pragmas) to catch syntax errors and such. 

#!perl
use strict;
use warnings;
my $File = "input.txt"; # this string wasn't quoted, so you must have 
+not shown us the code you're using
open(FILE, "<", $File) or die qq(failed to open file "$File": $!); # y
+ou didn't check whether open failed
chomp(my @IPLIST = <FILE>); # this works as expected
close(FILE);

foreach my $test (@IPLIST) {
  print "Is $test an IP?\n";
}

[download]
Output: 
Is 111.111.111.111 an IP?
Is 222.222.222.222 an IP?
Is 333.333.333.333 an IP?

In reply to Re: chomp removes everything *except* the newline? by Anonymous Monk
in thread chomp removes everything *except* the newline? by follier

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