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
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
-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 uuidgen(1).
This page is part of the util-linux (a random collection of Linux
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at ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you
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2021-03-21. (At that time, the date of the most recent commit
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util-linux April 2010 SWAPLABEL(8)