tr

Overview ¶

Package tr implements the `tr` built-in.

Supports character classes ([:alpha:], [:digit:], [:upper:], [:lower:], [:space:], [:punct:], [:xdigit:], [:alnum:], [:cntrl:], [:print:], [:graph:], [:blank:]), ranges (a-z), explicit lists, and flags -d delete, -s squeeze, -c complement, -C (== -c).