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
 

AUTHOR

Written by Jay Lepreau and David MacKenzie.  

Willie has over 15 years of experience in Linux system administration and DevOps. After managing infrastructure for startups and enterprises alike, he founded Command Linux to share the practical knowledge he wished he had when starting out. He oversees content strategy and contributes guides on server management, automation, and security.