Reference

uu-tac(1)

Write each file to standard output, last line first.

NAME

tac - Write each file to standard output, last line first.

SYNOPSIS

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

DESCRIPTION

Write each file to standard output, last line first.

OPTIONS

-b, --before

attach the separator before instead of after

-r, --regex

interpret the sequence as a regular expression

-s, --separator <STRING>

use STRING as the separator instead of newline

-h, --help

Print help

-V, --version

Print version

VERSION

v(uutils coreutils) 0.12.0