Perl

Tutorials

• CPAN Tutorial

Duplikate suchen

http://stackoverflow.com/questions/2582940/how-do-i-remove-duplicate-characters-and-keep-the-unique-one-only-in-perl

homaar@mail:~$ echo tttttttttttttttttest | perl -pe 's/(..)(?=.*?\1)//g'
tttest

Command-Switches

• http://perldoc.perl.org/perlrun.html#Command-Switches

#!/usr/bin/perl -w
#prints warnings about dubious constructs...