rot13 reads from standard input or the named files,
moving each occurrence of a letter 13 places forward in the alphabet,
wrapping around past the end of the alphabet See also ROT13.
I wrote it partly for fun and partly because I didn't want all the setgid stuff in bsdgames appearing in my security reports. It is also rather a lot faster 😎
./autogen.sh
./configure
make check
sudo make install
$ rot13 README.md
# ebg13
`ebg13` ernqf sebz fgnaqneq vachg be gur anzrq svyrf,
zbivat rnpu bppheerapr bs n yrggre 13 cynprf sbejneq va gur nycunorg,
jenccvat nebhaq cnfg gur raq bs gur nycunorg.
[...etc...]
man rot13
Copyright © Richard Kettewell.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see www.gnu.org/licenses.