# phpman > man > lssubsys(1)


[LSSUBSYS(1)](https://www.chedong.com/phpMan.php/man/LSSUBSYS/1/markdown)                               libcgroup Manual                               [LSSUBSYS(1)](https://www.chedong.com/phpMan.php/man/LSSUBSYS/1/markdown)



## NAME
       lssubsys - list hierarchies containing given subsystem


## SYNOPSIS
       **lssubsys**  [**-m|--mount-points**] [**-M|--all-mount-points**] [_controller_] [...]
       **lssubsys**  [**-m|--mount-points**] [**-M|--all-mount-points**] [**-i|--hierarchies**] [**-a|--all**]
       **lssubsys**  [**-h|--help**]


## DESCRIPTION
       **lssubsys**  list the hierarchies containing the given subsystem(s). If no subsystem is defined,
       it displays all mounted hierarchies.


### controller
              defines the subsystem whose hierarchy is shown.  If this parameter is  not  used,  the
              command will list all mounted subsystems.


### -m, --mount-points
              Display mount points. Only the first mount points of shown hierarchies are displayed.


### -M, --all-mount-points
              Display  mount  points.  All  mount points of shown hierarchies are displayed, each on
              separate line.


### -a, --all
              Display all subsystems (including unmounted ones).


### -i, --hierarchies
              Display the attached hierarchy number if the subsystem is in a hierarchy.  If the  op‐
              tion **-m** is also used, the hierarchy number is shown only for unmounted hierarchies.


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


## EXAMPLE
       The  command  **lssubsys** **-am** lists all subsystems which are present in the system, mounted ones
       will be shown with their mount point:
              $ lssubsys -am
              ns
              cpuset
              cpu,devices
              cpuacct /cgroup/cpuacct
              memory /cgroup/memory
              freezer /cgroup/freezer
              net_cls /cgroup/net_cls

       The command **lssubsys** **-ami** lists all subsystems which are present in the system, mounted  sub‐
       systems  are  listed  with  their  mount  points, unmounted ones which are in a hierarchy are
       listed with their hierarchy number:
              $ lssubsys -ami
              ns
              cpuset 5
              cpu,devices 6
              cpuacct /cgroup/cpuacct
              memory /cgroup/memory
              freezer /cgroup/freezer
              net_cls /cgroup/net_cls


## ENVIRONMENT VARIABLES
       **CGROUP**___**LOGLEVEL**
              controls verbosity of the tool. Allowed values are **DEBUG**, **INFO**, **WARNING** or **ERROR**.


## SEE ALSO
       lscgroup (1), cgcreate (1), cgdelete (1), cgconfig.conf (5)



Linux                                        2009-11-05                                  [LSSUBSYS(1)](https://www.chedong.com/phpMan.php/man/LSSUBSYS/1/markdown)