Generating a Random String of 'n' length


 
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Top Forums Shell Programming and Scripting Generating a Random String of 'n' length
# 8  
Old 11-04-2015
Amazing functions!
Only I don't like the 62.
Applied to my script
Code:
cat randstring.pl

Code:
#!/usr/bin/perl -l
@allchars=( A..Z, a..z, 0..9 );
print map { @allchars[rand $#allchars+1] } 1..pop

And embedded in a shell script
Code:
n=10
perl -le '@allchars=( A..Z, a..z, 0..9 ); print map { @allchars[rand $#allchars+1] } 1..pop' $n

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Crypt::Random::Source::Factory(3pm)			User Contributed Perl Documentation		       Crypt::Random::Source::Factory(3pm)

NAME
Crypt::Random::Source::Factory - Load and instantiate sources of random data SYNOPSIS
use Crypt::Random::Source::Factory; my $f = Crypt::Random::Source::Factory->new; my $strong = $f->get_strong; my $weak = $f->get_weak; my $any = $f->get; DESCRIPTION
This class implements a loading and instantiation factory for Crypt::Random::Source objects. If $ENV{CRYPT_RANDOM_NOT_PLUGGABLE} is set then only a preset list of sources will be tried. Otherwise Module::Find will be used to locate any installed sources, and use the first available one. METHODS
get %args Instantiate any random source, passing %args to the constructor. The "type" argument can be "weak", "strong" or "any". get_weak %args get_strong %args Instantiate a new weak or strong random source. AUTHOR
Yuval Kogman <nothingmuch@woobling.org> COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Yuval Kogman. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. perl v5.14.2 2011-01-05 Crypt::Random::Source::Factory(3pm)