ROT13

Usage:

First compile the project with:

$ make

Then run the ROT13 algorithm with options:

$ ./rot13 with a little text
# jvgu n yvggyr grkg 

$ ./rot13 < test.txt
# Jul qvq gur puvpxra pebff gur ebnq?

$ echo "Jul qvq gur puvpxra pebff gur ebnq?" | ./rot13
# Why did the chicken cross the road?

References

• Wikipedia ROT13
• Wikipedia ASCII