Replace each letter in a .txt with the letter six positions later

Question

I want to "encrypt" a .txt by replacing each letter with the letter six positions later. What I have right now is:

tr [:alpha:] ??? < myfile.txt

But I don't know what to put in ??? ...

Any help is appreciated, thanks.

See https://unix.stackexchange.com/q/19772/100397 for a possible inverse question — Chris Davies, Oct 13 '19 at 16:03

score 1 · Accepted Answer · edited Oct 13 '19 at 16:21

1

Try

tr '[a-z]' '[f-za-e]'

There's an explanation from the inverse question at How does tr '[a-z]' '[n-za-m]' work?

edited Oct 13 '19 at 16:21

Chris Davies

answered Oct 13 '19 at 16:03

Archemar

This worked, thanks. And also thanks to @roaima whose linked answer helped me understand the question better. – Jiménez Oct 13 '19 at 16:14

1 Answers1