.TH ROT13 6df "September 2016" "Manual page for rot13" .SH NAME .B rot13 \- Latin ROT13 cipher .SH USAGE .B rot13 .br .B rot13 file .br .B rot13 file1 file2 file3 .br .B rot13 < file .SH DESCRIPTION .B rot13 implements the ROT13 Caesar cipher for the Latin letters with sed(1), both upper and lowercase. .SH AUTHORS Tom Ryder