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lsns(8)


NAME

   lsns - list namespaces

SYNOPSIS

   lsns [options] [namespace]

DESCRIPTION

   lsns lists information about all the currently accessible namespaces or
   about the given  namespace.   The  namespace  identifier  is  an  inode
   number.

   The  default  output  is  subject to change.  So whenever possible, you
   should avoid using default outputs in your scripts.  Always  explicitly
   define  expected  columns  by using the --output option together with a
   columns list in environments where a stable output is required.

   Note that lsns reads information directly from the /proc filesystem and
   for  non-root  users it may return incomplete information.  The current
   /proc filesystem may be unshared and affected by a PID  namespace  (see
   unshare  --mount-proc  for  more  details).   lsns  is  not able to see
   persistent namespaces without processes where the namespace instance is
   held by a bind mount to /proc/pid/ns/type.

OPTIONS

   -J, --json
          Use JSON output format.

   -l, --list
          Use list output format.

   -n, --noheadings
          Do not print a header line.

   -o, --output list
          Specify which output columns to print.  Use --help to get a list
          of all supported columns.

          The default list of columns may be extended if list is specified
          in the format +list (e.g. lsns -o +PATH).

   -p, --task pid
          Display only the namespaces held by the process with this pid.

   -r, --raw
          Use the raw output format.

   -t, --type type
          Display  the  specified  type of namespaces only.  The supported
          types are mnt, net, ipc, user, pid, uts and cgroup.  This option
          may be given more than once.

   -u, --notruncate
          Do not truncate text in columns.

   -V, --version
          Display version information and exit.

   -h, --help
          Display help text and exit.

AUTHORS

   Karel Zak <kzak@redhat.com>

SEE ALSO

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

AVAILABILITY

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



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