showmount Command

Commands Reference, Volume 5

showmount Command

Purpose

Displays a list of all clients that have remotely mounted file systems.

Syntax

/usr/bin/showmount [ -a ] [ -d ] [ -e ] [ Host ]

Description

The showmount command displays a list of all clients that have remotely mounted a file system from a specified machine in the Host parameter. This information is maintained by the mountd daemon on the Host parameter. This information is saved in the /etc/rmtab file in case the server crashes. The default value for the Host parameter is the value returned by the hostname command.

Note: If a client crashes, its entry will not be removed from the list until the client reboots and starts the umount -a command.

Flags

-a	Prints all remote mounts in the format HostName:Directory, in which HostName is the name of the client and Directory is a directory pathname that has been remotely mounted.
-d	Lists only directories that have been remotely mounted by clients.
-e	Prints the list of exported directories.

Examples

To display a list of all remote directories mounted by a host, enter:
```
/usr/bin/showmount -a zeus
```
In this example, the showmount command produces a list of all of the remote directories mounted by the clients on the host machine named zeus.
To display a list of only the directories mounted by a client on the host, enter:
```
/usr/bin/showmount -d athena
```
In this example, the showmount command produces a list of all remote directories mounted by the client machines on the host named athena.
To print a list of all directories exported from a machine, enter:
```
/usr/bin/showmount -e zeus
```
In this example, the showmount command produces a list of all remote directories exported by the host machine named zeus.

Files

/etc/rmtab	Contains information about the current state of all exported directories.
/etc/xtab	Lists currently exported directories.

Related Information

The hostname command, umount command.

The mountd daemon.

List of NFS Commands.

Network File System (NFS) Overview for System Management, NFS Problem Determination in AIX Version 4.3 System Management Guide: Communications and Networks.