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tac - Man Page

concatenate and print files in reverse

Examples (TL;DR)

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'

Referenced By

cat(1), rev(1).

July 2024 GNU coreutils 9.5