.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.49.3. .TH TAC "1" "January 2023" "GNU coreutils 9.1" "User Commands" .SH NAME tac \- manual page for tac 9.1 .SH SYNOPSIS .B tac [\fI\,OPTION\/\fR]... [\fI\,FILE\/\fR]... .SH DESCRIPTION Write each FILE to standard output, last line first. .PP With no FILE, or when FILE is \-, read standard input. .PP Mandatory arguments to long options are mandatory for short options too. .TP \fB\-b\fR, \fB\-\-before\fR attach the separator before instead of after .TP \fB\-r\fR, \fB\-\-regex\fR interpret the separator as a regular expression .TP \fB\-s\fR, \fB\-\-separator\fR=\fI\,STRING\/\fR use STRING as the separator instead of newline .TP \fB\-\-help\fR display this help and exit .TP \fB\-\-version\fR output version information and exit .PP GNU coreutils online help: Report any translation bugs to Full documentation or available locally via: info '(coreutils) tac invocation' .SH AUTHOR Written by Jay Lepreau and David MacKenzie. .SH COPYRIGHT Copyright \(co 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . .br This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.