pterjan's diary

  Letter sequence in bash

Someone asked on IRC how to generate a sequence of letters in bash, like seq does for numbers.

An answer was to use jot -w %c 26 a on FreeBSD, but he was on Linux.

I gave an other answer for use with bash 3, and I post it here as it looks like not much people know it :

[pterjan@plop ~]$ echo {a..e}
a b c d e
[pterjan@plop ~]$ echo {a..b}{a..b}
aa ab ba bb