tac - concatenate and print files in reverse
tac [OPTION]... [FILE]...
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
Written by Jay Lepreau and David MacKenzie.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
Copyright © 2023 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.
cat(1), rev(1)
Full documentation <https://www.gnu.org/software/coreutils/tac>
or available locally via: info '(coreutils) tac invocation'