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Answer: How do I make password prompts not echo back the user?

by Anonymous Monk
on Oct 23, 2003 at 02:30 UTC ( #301453=categorized answer: print w/replies, xml ) Need Help??

Q&A > input and output > How do I make password prompts not echo back the user? - Answer contributed by Anonymous Monk

Here's how I did it using Term::Readkey

ReadMode ('noecho');
print "Enter Password: ";
chomp($pw = <STDIN>);
ReadMode ('restore');

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Re: Answer: How do I make password prompts not echo back the user?
by batkins (Chaplain) on Oct 23, 2003 at 02:54 UTC
    Another methood is this:
    system('stty -echo'); print "Enter Password: "; chomp($pw = <STDIN>); system('stty echo');

    The computer can't tell you the emotional story. It can give you the exact mathematical design, but what's missing is the eyebrows. - Frank Zappa

       This works but there are two caveats you should bear in mind:

      • If you're running the script as a priviledged process you might have just opened yourself to a local attack, if the user can modify their path and slip in a trojan 'stty' binary.
      • This fails utterly on Windows, amongst other systems.
      Steve
      ---
      steve.org.uk
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