bionic (8) lsns.8.gz

Provided by: util-linux_2.31.1-0.4ubuntu3.7_amd64 bug

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

       nsenter(1), unshare(1), clone(2), namespaces(7)

AVAILABILITY

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