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- TAC(1L) MISC. REFERENCE MANUAL PAGES TAC(1L)
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- NAME
- tac - concatenate and print files in reverse
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- SYNOPSIS
- tac [-br] [-s separator] [--before] [--regex]
- [--separator=separator] [file...]
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- DESCRIPTION
- This manual page documents the GNU version of tac. tac
- copies each given file, or the standard input if none are
- given or when a file name of `-' is encountered, to the
- standard output with the order of the records reversed. The
- records are separated by instances of a string, or a newline
- if none is given. By default, the separator string is
- attached to the end of the record that it follows in the
- file.
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- OPTIONS
- -_b, --_b_e_f_o_r_e
- The separator is attached to the beginning of the
- record that it precedes in the file.
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- -_r, --_r_e_g_e_x
- The separator is a regular expression.
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- -_s, --_s_e_p_a_r_a_t_o_r _s_e_p_a_r_a_t_o_r
- Use _s_e_p_a_r_a_t_o_r as the record separator.
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- The long-named options can be introduced with `+' as well as
- `--', for compatibility with previous releases. Eventually
- support for `+' will be removed, because it is incompatible
- with the POSIX.2 standard.
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- Sun Release 4.1 Last change: 1
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