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TAC(1)                           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: 
       General help using GNU software: 
       Report tac translation bugs to 

COPYRIGHT
       Copyright  (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later .
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       rev(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 com-
       mand

              info coreutils 'tac invocation'

       should give you access to the complete manual.



GNU coreutils 8.21                March 2016                            TAC(1)



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