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Man page of TAC
TAC
Section: User Commands (1)
Updated: June 2025
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NAME
tac - concatenate and print files in reverse
SYNOPSIS
tac
[,OPTION/]... [,FILE/]...
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
AUTHOR
Written by Jay Lepreau and David MacKenzie.
REPORTING BUGS
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
SEE ALSO
cat(1), rev(1)
Full documentation <https://www.gnu.org/software/coreutils/tac>
or available locally via: info '(coreutils) tac invocation'
Packaged by Debian (9.7-3)
Copyright © 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://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.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- AUTHOR
-
- REPORTING BUGS
-
- SEE ALSO
-
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