Perl/1 liners

Use perl on your command line

Operators

• The “|�? (pipe) symbol takes the output from a command line command and makes it the standard input of your 1 line Perl program.
• The diamond operator, <>, reads lines from standard input.
• Access command line arguments using @ARGV.

Example

perl -e 'for $i (0..255) {print "$i:&#$i;<br>\n";}' >allutf8.html

Tutorials

• Tutorial] from 'The Perl Review' magazine. (.pdf)
• Waikato Linux User Group One liner tutorial