1REV(1)                           User Commands                          REV(1)
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NAME

6       rev - reverse lines characterwise
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SYNOPSIS

9       rev [option] [file...]
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DESCRIPTION

12       The rev utility copies the specified files to standard output,
13       reversing the order of characters in every line. If no files are
14       specified, standard input is read.
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16       This utility is a line-oriented tool and it uses in-memory allocated
17       buffer for a whole wide-char line. If the input file is huge and
18       without line breaks than allocate the memory for the file may be
19       unsuccessful.
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OPTIONS

22       -V, --version
23           Display version information and exit.
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25       -h, --help
26           Display help text and exit.
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SEE ALSO

29       tac(1)
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REPORTING BUGS

32       For bug reports, use the issue tracker at
33       https://github.com/karelzak/util-linux/issues.
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AVAILABILITY

36       The rev command is part of the util-linux package which can be
37       downloaded from Linux Kernel Archive
38       <https://www.kernel.org/pub/linux/utils/util-linux/>.
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42util-linux 2.37.2                 2021-06-02                            REV(1)