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How do I ask the user for a password?

by vroom (Pope)
on Oct 08, 1999 at 00:29 UTC ( #714=perlfaq nodetype: print w/replies, xml ) Need Help??

Current Perl documentation can be found at perldoc.perl.org.

Here is our local, out-dated (pre-5.6) version:

(This question has nothing to do with the web. See a different FAQ for that.)

There's an example of this in crypt). First, you put the terminal into ``no echo'' mode, then just read the password normally. You may do this with an old-style ioctl() function, POSIX terminal control (see the POSIX manpage, and Chapter 7 of the Camel), or a call to the stty program, with varying degrees of portability.

You can also do this for most systems using the Term::ReadKey module from CPAN, which is easier to use and in theory more portable.

    use Term::ReadKey;

    ReadMode('noecho');
    $password = ReadLine(0);

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[Discipulus]: get them all printed on screen
Discipulus ;=)
[shmem]: silly question, silly answer:
[Discipulus]: i know, i know..
[shmem]: man perlfunc |perl -nle '$ok++ if /Alphabetical Listing of Perl Functions/;if($ok ){$s{$1}++if /^ (\w+)/}}{for(keys %s){$f="prototype \\\&CORE::$_"; eval"$f"||delete $CORE::{$_}}print for sort keys%CORE::'
[shmem]: well, there are some builtins which don't have a prototype...
[Discipulus]: eh eh.. i was looking in toke.c but dunno if is already used
[shmem]: oh the whitespace in the regex got condensed, meh

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