1. Technology
Linux / Unix Command: tac
Command Library

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
 

SEE ALSO

The full documentation for tac is maintained as a Texinfo manual. If the info and tac programs are properly installed at your site, the command
info tac

should give you access to the complete manual.


Important: Use the man command (% man) to see how a command is used on your particular computer.

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