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1 //po4a: entry man manual
2 ////
3 Copyright 2010 Jason Borden <jborden@bluehost.com>
4 This file may be copied under the terms of the GNU Public License.
5 ////
6 = swaplabel(8)
7 :doctype: manpage
8 :man manual: System Administration
9 :man source: util-linux {release-version}
10 :page-layout: base
11 :command: swaplabel
12
13 == NAME
14
15 swaplabel - print or change the label or UUID of a swap area
16
17 == SYNOPSIS
18
19 *swaplabel* [*-L* _label_] [*-U* _UUID_] _device_
20
21 == DESCRIPTION
22
23 *swaplabel* will display or change the label or UUID of a swap partition located on _device_ (or regular file).
24
25 If the optional arguments *-L* and *-U* are not given, *swaplabel* will simply display the current swap-area label and UUID of _device_.
26
27 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.
28
29 == OPTIONS
30
31 include::man-common/help-version.adoc[]
32
33 *-L*, *--label* _label_::
34 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.
35
36 *-U*, *--uuid* _UUID_::
37 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).
38
39 == ENVIRONMENT
40
41 LIBBLKID_DEBUG=all::
42 enables libblkid debug output.
43
44 == AUTHORS
45
46 *swaplabel* was written by mailto:jborden@bluehost.com[Jason Borden] and mailto:kzak@redhat.com[Karel Zak].
47
48 == SEE ALSO
49
50 *uuidgen*(1),
51 *mkswap*(8),
52 *swapon*(8)
53
54 include::man-common/bugreports.adoc[]
55
56 include::man-common/footer.adoc[]
57
58 ifdef::translation[]
59 include::man-common/translation.adoc[]
60 endif::[]