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2LSNS(8)                      System Administration                     LSNS(8)
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NAME

7       lsns - list namespaces
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SYNOPSIS

10       lsns [options] [namespace]
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DESCRIPTION

14       lsns lists information about all the currently accessible namespaces or
15       about the given namespace.  The namespace identifier is an  inode  num‐
16       ber.
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18       The  default  output  is  subject to change.  So whenever possible, you
19       should avoid using default outputs in your scripts.  Always  explicitly
20       define  expected  columns  by using the --output option together with a
21       columns list in environments where a stable output is required.
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23       Note that lsns reads information directly from the /proc filesystem and
24       for  non-root  users it may return incomplete information.  The current
25       /proc filesystem may be unshared and affected by a PID  namespace  (see
26       unshare  --mount-proc  for more details).  lsns is not able to see per‐
27       sistent namespaces without processes where the  namespace  instance  is
28       held by a bind mount to /proc/pid/ns/type.
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OPTIONS

32       -l, --list
33              Use list output format.
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35       -n, --noheadings
36              Do not print a header line.
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38       -o, --output list
39              Specify which output columns to print.  Use --help to get a list
40              of all supported columns.
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42              The default list of columns may be extended if list is specified
43              in the format +list (e.g. lsns -o +PATH).
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45       -p, --task pid
46              Display only the namespaces held by the process with this pid.
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48       -r, --raw
49              Use the raw output format.
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51       -t, --type type
52              Display  the  specified  type of namespaces only.  The supported
53              types are mnt, net, ipc, user, pid and uts.  This option may  be
54              given more than once.
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56       -u, --notruncate
57              Do not truncate text in columns.
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59       -V, --version
60              Display version information and exit.
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62       -h, --help
63              Display help text and exit.
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AUTHORS

67       Karel Zak <kzak@redhat.com>
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SEE ALSO

71       unshare(1), nsenter(1), clone(2)
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AVAILABILITY

75       The  lsns  command  is  part of the util-linux package and is available
76       from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
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80util-linux                       December 2015                         LSNS(8)