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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 19:10:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 19:10:49 +0000 |
commit | cfe5e3905201349e9cf3f95d52ff4bd100bde37d (patch) | |
tree | d0baf160cbee3195249d095f85e52d20c21acf02 /sys-utils/lsns.8.adoc | |
parent | Initial commit. (diff) | |
download | util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.tar.xz util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.zip |
Adding upstream version 2.39.3.upstream/2.39.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sys-utils/lsns.8.adoc')
-rw-r--r-- | sys-utils/lsns.8.adoc | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/sys-utils/lsns.8.adoc b/sys-utils/lsns.8.adoc new file mode 100644 index 0000000..ea6c87e --- /dev/null +++ b/sys-utils/lsns.8.adoc @@ -0,0 +1,105 @@ +//po4a: entry man manual +//// +Man page for the lsns command. +Copyright 2015 Karel Zak <kzak@redhat.com> +May be distributed under the GNU General Public License +//// += lsns(8) +:doctype: manpage +:man manual: System Administration +:man source: util-linux {release-version} +:page-layout: base +:command: lsns + +== 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 output mode (*--tree* or *--list*) and columns by using the *--output* option together with a columns list in environments where a stable output is required. + +The *NSFS* column, printed when *net* is specified for the *--type* option, is special; it uses multi-line cells. Use the option *--nowrap* to switch to ","-separated single-line representation. + +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*). + +*--output-all*:: +Output all available columns. + +*-P*, *--persistent*:: +Display only the namespaces without processes (aka persistent namespaces), created by bind mounting +/proc/pid/ns/type files to a filesystem 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*, *cgroup* and *time*. This option may be given more than once. + +*-u*, *--notruncate*:: +Do not truncate text in columns. + +*-W*, *--nowrap*:: +Do not use multi-line text in columns. + +*-T*, *--tree* _rel_:: +Use tree-like output format. If *process* is given as _rel_, print process tree(s) in each name space. This is default when *--tree* is not specified. If *parent* is given, print tree(s) constructed by the parent/child relationship. If *owner* is given, print tree(s) constructed by the owner/owned relationship. *owner* is used as default when _rel_ is omitted. + +include::man-common/help-version.adoc[] + +== EXIT STATUS + +The *lsns* utility exits with one of the following values: + +*0*:: +Success. +*1*:: +General error. +*2*:: +An ioctl was unknown to the kernel. + +== AUTHORS + +mailto:kzak@redhat.com[Karel Zak] + +== SEE ALSO + +*nsenter*(1), +*unshare*(1), +*clone*(2), +*namespaces*(7), +*ioctl_ns*(2), +*ip-netns*(8) + +include::man-common/bugreports.adoc[] + +include::man-common/footer.adoc[] + +ifdef::translation[] +include::man-common/translation.adoc[] +endif::[] |