linux man page for swaplabel

SWAPLABEL(8)						     Linux Programmer's Manual						      SWAPLABEL(8)

NAME
       swaplabel - Print or change the label / UUID of a swap area

SYNOPSIS
       swaplabel [-L label] [-U UUID] device

DESCRIPTION
       swaplabel will display or change the label / UUID of a swap partition located on device (or regular file).

       If the optional arguments -L and -U are not present, swaplabel will simply display the swap area label and UUID of device.

       If  an  optional argument is present, then swaplabel will change the appropriate value of device.  These values can also be set during swap
       creation using mkswap(8).  The swaplabel utility allows to change the label or UUID on actively used swap device.

OPTIONS
       -h, --help
	      Print help and exit.

       -L, --label label
	      Specify a new label for device.  Swap partition labels can be at most 16 characters long.  If label is longer  than  16  characters,
	      swapinfo will truncate it and print a warning message.

       -U, --uuid uuid
	      Specify a new UUID for device.  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>.

AVAILABILITY
       swaplabel is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

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

Linux								   2 April 2010 						      SWAPLABEL(8)