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tac - concatenate and print files in reverse
tac [OPTION]... [FILE]...
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
Written by Jay Lepreau and David MacKenzie.
Report bugs
to <bug-coreutils@gnu.org>.
Copyright © 2004 Free Software Foundation,
Inc.
This is free software; see the source for copying conditions. There is
NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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 tac
should give you access to the complete manual.
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