tr

tr [OPTIONS] [sets]...

translate or delete characters

Options

--help, -h

Print help information

--version, -V

Print version information

--complement, -c

use the complement of SET1

-C

same as -c

--delete, -d

delete characters in SET1, do not translate

--squeeze-repeats, -s

replace each sequence of a repeated character that is listed in the last specified SET, with a single occurrence of that character

--truncate, -t

first truncate SET1 to length of SET2