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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

       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report tac translation bugs to <https://translationproject.org/team/>


COPYRIGHT

       Copyright (C) 2018 Free Software Foundation, Inc.  License GPLv3+:  GNU
       GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
       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)

       Full documentation at: <https://www.gnu.org/software/coreutils/tac>
       or available locally via: info '(coreutils) tac invocation'

GNU coreutils 8.30		   July 2018				TAC(1)

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