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ROT13 using the tr command

Terminal - ROT13 using the tr command
function rot13 { if [ -r $1 ]; then cat $1 | tr '[N-ZA-Mn-za-m5-90-4]' '[A-Za-z0-9]'; else echo $* | tr '[N-ZA-Mn-za-m5-90-4]' '[A-Za-z0-9]'; fi }
2011-03-18 09:59:41
User: twjolson
Functions: cat echo tr
-5
ROT13 using the tr command

Will rot 13 whatever parameter follows 'rot13', whether it is a string or a file. Additionally, it will rot 5 each digit in a number

Alternatives

There are 12 alternatives - vote for the best!

Terminal - Alternatives
alias rot13="tr '[A-Za-z]' '[N-ZA-Mn-za-m]'"
2009-03-30 19:08:49
User: penpen
Functions: alias
Tags: Linux unix
8

rot13 maps a..mn..z (A..MN..Z) to n..za..m (n..za..m) and so does this alias.

alias rot13="tr a-zA-Z n-za-mN-ZA-M"

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