User Commands                                              TAC(1)



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.

REPORTING BUGS
     Report tac bugs to bug-coreutils@gnu.org
     GNU             coreutils             home             page:
     <http://www.gnu.org/software/coreutils/>
     General        help        using        GNU        software:
     <http://www.gnu.org/gethelp/>
     Report        tac        translation         bugs         to
     <http://translationproject.org/team/>

COPYRIGHT
     Copyright c 2010 Free  Software  Foundation,  Inc.   License
     GPLv3+:      GNU      GPL     version     3     or     later
     <http://gnu.org/licenses/gpl.html>.
     This is free software: you are free to change and  redistri-
     bute  it.   There is NO WARRANTY, to the extent permitted by
     law.

SEE ALSO
     rev(1).





GNU coreutils 8.5    Last change: April 2010                    1






User Commands                                              TAC(1)



     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 coreutils tac invocation

     should give you access to the complete manual.
















































GNU coreutils 8.5    Last change: April 2010                    2