rot13 simple substitution cipher via command line

alias rot13='perl -pe "y/A-Za-z/N-ZA-Mn-za-m/;"'
E.g. Useful for hiding spoilers in reviews, etc.
Sample Output
~% echo Command-line-fu | rot13
~% echo Pbzznaq-yvar-sh | rot13

By: abcde
2009-02-06 14:22:43

What Others Think

The 'tr' equivalent is shorter (and less error-prone).
mkc · 636 weeks and 1 day ago
If you have PHP installed you can run: php -r 'print str_rot13($argv[1])."\n";' It's not shorter, but you don't have to list the actual character mappings.
leper421 · 634 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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