tac man page

tac — concatenate and print files in reverse


tac {{file1}}

tac {{file1}} {{file2}} > {{target_file}}


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
display this help and exit
output version information and exit


Written by Jay Lepreau and David MacKenzie.

Reporting Bugs

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report tac translation bugs to <http://translationproject.org/team/>

See Also


Full documentation at: <http://www.gnu.org/software/coreutils/t…>
or available locally via: info '(coreutils) tac invocation'

Referenced By

cat(1), rev(1).

November 2016 GNU coreutils 8.26 User Commands