Linux Commands Examples

A great documentation place for Linux commands

tac

concatenate and print files in reverse


see also : rev

Synopsis

tac [OPTION]... [FILE]...


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description

Write each FILE to standard output, last line first. With no FILE, or when FILE is -, read standard input.

Mandatory arguments to long options are mandatory for short options too.
-b
, --before

attach the separator before instead of after

-r, --regex

interpret the separator as a regular expression

-s, --separator=STRING

use STRING as the separator instead of newline

--help

display this help and exit

--version

output version information and exit

copyright

Copyright © 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

reporting bugs

Report tac bugs to bug-coreutils[:at:]gnu[:dot:]org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report tac translation bugs to <http://translationproject.org/team/>


see also

rev

The full documentation for tac is maintained as a Texinfo manual. If the info and tac programs are properly installed at your site, the command

info coreutils 'tac invocation'

should give you access to the complete manual.


author

Written by Jay Lepreau and David MacKenzie.

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