Section: User Commands (1)
Updated: March 2015
Translate, squeeze, and/or delete characters from standard input, writing to standard output.
SETs are specified as strings of characters. Most represent themselves. Interpreted sequences are:
Translation occurs if -d is not given and both SET1 and SET2 appear. -t may be used only when translating. SET2 is extended to length of SET1 by repeating its last character as necessary. Excess characters of SET2 are ignored. Only [:lower:] and [:upper:] are guaranteed to expand in ascending order; used in SET2 while translating, they may only be used in pairs to specify case conversion. -s uses SET1 if not translating nor deleting; else squeezing uses SET2 and occurs after translation or deletion.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report tr translation bugs to <http://translationproject.org/team/>
Copyright © 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
Full documentation at: <http://www.gnu.org/software/coreutils/tr>
or available locally via: info '(coreutils) tr invocation'
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