Translate, squeeze, and/or delete characters from standard input, writ- ing to standard output. -c, -C, –complement first complement SET1 -d, –delete delete characters in SET1, do not translate -s, –squeeze-repeats replace each input sequence of a repeated character that is listed in SET1 with a single occurrence of that character -t, –truncate-set1 first truncate SET1 to length of SET2