TR(1) TR(1) tr -- tr []... 1 [2] , / . 1 2 1 2, . -c, -C, --complement 1 -d, --delete , 1; -s, --squeeze-repeats , , -t, --truncate-set1 1 2 --help --version . . : \NNN NNN ( 1 3 ) \\ \a BEL \b \f \n \r \t \v 1-2 1 2 [*] 2: 1 [*] ; , 0 [:alnum:] [:alpha:] [:blank:] [:cntrl:] [:digit:] [:graph:] [:lower:] [:print:] , [:punct:] [:space:] [:upper:] [:xdigit:] [==] , , -d 1 2. -t . 2 1 . 2 . ; , [:lower:] [:upper:] , . . , . C GNU, , LC_ALL=C tr tr. (Jim Meyering). - GNU coreutils: Copyright (C) 2024 Free Software Foundation, Inc. GPLv3+: GNU GPL 3 . : . , . , info '(coreutils) tr invocation' () ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. GNU coreutils 9.5 2024 . TR(1)