This code works for me: 
$line=`
  cmd 1
  cmd 2
  cmd 3
  alarm () {
    /usr/bin/perl -e '
      alarm shift;
      exec \@ARGV;' -- "\$@"
  }
  alarm 4 cmd 4
  cmd n `;

print "$line";

[download]
The differences are:
  1. path to perl (might be different on your system)
  2. escaping the @ sign
  3. escaping the $ sign
  4. Update: the -- separator

In reply to Re^3: one liner in script by choroba
in thread one liner in script by Anonymous Monk

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