lsfs Command
Purpose
Displays the characteristics of file systems.
Syntax
lsfs [ -q ] [ -c | -l ] [ -a | -v VfsType | -u MountGroup| [FileSystem...] ]
Description
The lsfs command displays characteristics of file systems, such as mount points, automatic mounts, permissions, and file system size. The FileSystem parameter reports on a specific file system. The following subsets can be queried for a listing of characteristics:
- All file systems
- All file systems of a certain mount group
- All file systems of a certain virtual file system type
- One or more individual file systems
The lsfs command displays additional Journaled File System (JFS) or Enhanced Journaled File System (JFS2) characteristics if the -q flag is specified.
You can use the System Management Interface Tool (SMIT) smit lsfs fast path to run this command.
Flags
| Item | Description |
|---|---|
| -a | Lists all file systems (default). |
| -c | Specifies that the output should be in colon format. |
| -l | Specifies that the output should be in list format. |
| -q | Displays additional Journaled File System (JFS) or Enhanced
Journaled File System (JFS2) characteristics specific to the file
system type. This information is not reported for other virtual file system types. It is displayed in addition to other file system characteristics reported by the lsfs command. |
| -u MountGroup | Reports on all file systems of a specified mount group. |
| -v VfsType | Reports on all file systems of a specified type. |
Examples
- To show all file systems
in the /etc/filesystems file, enter:
lsfs - To show all file systems
of vfs type jfs, enter: lsfs -v jfs
- To show the file
system size, the fragment size, the compression algorithm (if any),
and the number of bytes per i-node as recorded in the superblock
of the root file system, enter: lsfs -q /
Files
| Item | Description |
|---|---|
| /etc/filesystems | Lists the known file systems and defines their characteristics. |