# phpman > man > swaplabel(8)

[SWAPLABEL(8)](https://www.chedong.com/phpMan.php/man/SWAPLABEL/8/markdown)                            System Administration                           [SWAPLABEL(8)](https://www.chedong.com/phpMan.php/man/SWAPLABEL/8/markdown)



## NAME
       swaplabel - print or change the label or UUID of a swap area

## SYNOPSIS
       **swaplabel** [**-L** _label_] [**-U** _UUID_] _device_

## DESCRIPTION
       **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)](https://www.chedong.com/phpMan.php/man/mkswap/8/markdown). The **swaplabel**
       utility allows changing the label or UUID on an actively used swap device.

## OPTIONS
### -h --help
           Display help text and exit.

### -L --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 message.

### -U --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)](https://www.chedong.com/phpMan.php/man/uuidgen/1/markdown).

## ENVIRONMENT
       LIBBLKID_DEBUG=all
           enables libblkid debug output.

## AUTHORS
       **swaplabel** was written by Jason Borden <<jborden@bluehost.com>> and Karel Zak <<kzak@redhat.com>>.

## SEE ALSO
       [**uuidgen**(1)](https://www.chedong.com/phpMan.php/man/uuidgen/1/markdown), [**mkswap**(8)](https://www.chedong.com/phpMan.php/man/mkswap/8/markdown), [**swapon**(8)](https://www.chedong.com/phpMan.php/man/swapon/8/markdown)

## REPORTING BUGS
       For bug reports, use the issue tracker at <https://github.com/karelzak/util-linux/issues>.

## AVAILABILITY
       The **swaplabel** 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/>>.



util-linux 2.37.2                            2021-06-02                                 [SWAPLABEL(8)](https://www.chedong.com/phpMan.php/man/SWAPLABEL/8/markdown)