TAC

Section: User Commands (1)
Updated: March 2021
Page Index
 

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/>  

COPYRIGHT

Copyright © 2020 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.  

SEE ALSO

rev(1)


Full documentation <https://www.gnu.org/software/coreutils/tac>
or available locally via: info '(coreutils) tac invocation'


 

Index

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO