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).  The swaplabel
       utility allows to change the label or UUID on an actively used swap device.

OPTIONS

       -h, --help
              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 message.

       -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).

AUTHOR

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

ENVIRONMENT

       LIBBLKID_DEBUG=all
              enables libblkid debug output.

AVAILABILITY

       The   swaplabel  command  is  part  of  the  util-linux  package  and  is  available  from
       https://www.kernel.org/pub/linux/utils/util-linux/.

SEE ALSO

       uuidgen(1), mkswap(8), swapon(8)