rev(1) — Linux manual page

REV(1)                        User Commands                       REV(1)

NAME

       rev - reverse lines characterwise

SYNOPSIS

       rev [option] [file...]

DESCRIPTION

       The rev utility copies the specified files to standard output,
       reversing the order of characters in every line. If no files are
       specified, standard input is read.

       This utility is a line-oriented tool and it uses in-memory
       allocated buffer for a whole wide-char line. If the input file is
       huge and without line breaks then allocating the memory for the
       file may be unsuccessful.

OPTIONS

       -h, --help
           Display help text and exit.

       -V, --version
           Print version and exit.

       -0, --zero
           Zero termination. Use the byte '\0' as line separator.

SEE ALSO

       tac(1)

REPORTING BUGS

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

AVAILABILITY

       The rev command is part of the util-linux package which can be
       downloaded from Linux Kernel Archive
       <https://www.kernel.org/pub/linux/utils/util-linux/>. This page
       is part of the util-linux (a random collection of Linux
       utilities) project. Information about the project can be found at
       ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you have
       a bug report for this manual page, send it to
       util-linux@vger.kernel.org. This page was obtained from the
       project's upstream Git repository
       ⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
       2024-06-14. (At that time, the date of the most recent commit
       that was found in the repository was 2024-06-10.) If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page,
       or you have corrections or improvements to the information in
       this COLOPHON (which is not part of the original manual page),
       send a mail to man-pages@man7.org

util-linux 2.39.594-1e0ad      2023-07-19                         REV(1)

Pages that refer to this page: tac(1)

---