use warnings;
use strict;

my $input = <STDIN>;
chomp $input;
exit if $input eq 'e' or $input eq 'E';
[download]

• use strict and warnings to fix your variable name mistake.
• chomp your input.
• Checking for each value independently is one way to do it. Another is to use a regular expression.

  exit if $input =~ /^e$/i;
  [download]

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