swaplabel will display or change the label or UUID of a swap
partition located on device (or regular file).
If the optional arguments -L and -U are not given, swaplabel will
simply display the current swap-area label and UUID of device.
If an optional argument is present, then swaplabel will change the
appropriate value on device. These values can also be set during
swap creation using mkswap(8). The swaplabel utility allows changing
the label or UUID on an actively used swap device.
Display help text and exit.
-L, --label label
Specify a new label for the device. Swap partition labels can
be at most 16 characters long. If label is longer than 16
characters, swaplabel will truncate it and print a warning
-U, --uuid UUID
Specify a new UUID for the device. The UUID must be in the
standard 8-4-4-4-12 character format, such as is output by
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
firstname.lastname@example.org. This page was obtained from the
project's upstream Git repository
2020-07-14. (At that time, the date of the most recent commit that
was found in the repository was 2020-07-14.) 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
util-linux April 2010 SWAPLABEL(8)