SHOWMOUNT(8)               System Manager's Manual              SHOWMOUNT(8)

NAME         top

       showmount - show mount information for an NFS server

SYNOPSIS         top

       showmount [ -adehv ] [ --all ] [ --directories ] [ --exports ]
       [ --help ] [ --version ] [ host ]

DESCRIPTION         top

       showmount queries the mount daemon on a remote host for information
       about the state of the NFS server on that machine.  With no options
       showmount lists the set of clients who are mounting from that host.
       The output from showmount is designed to appear as though it were
       processed through ``sort -u''.

OPTIONS         top

       -a or --all
              List both the client hostname or IP address and mounted
              directory in host:dir format. This info should not be
              considered reliable. See the notes on rmtab in rpc.mountd(8).

       -d or --directories
              List only the directories mounted by some client.

       -e or --exports
              Show the NFS server's export list.

       -h or --help
              Provide a short help summary.

       -v or --version
              Report the current version number of the program.

              Suppress the descriptive headings from the output.

SEE ALSO         top

       rpc.mountd(8), rpc.nfsd(8)

BUGS         top

       The completeness and accuracy of the information that showmount
       displays varies according to the NFS server's implementation.

       Because showmount sorts and uniqs the output, it is impossible to
       determine from the output whether a client is mounting the same
       directory more than once.

       showmount works by contacting the server's MNT service directly.
       NFSv4-only servers have no need to advertise their exported root
       filehandles via this method, and may not expose their MNT service to

AUTHOR         top

       Rick Sladkey <>

COLOPHON         top

       This page is part of the nfs-utils (NFS utilities) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug
       report for this manual page, see
       ⟨⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨;a=summary⟩ on
       2020-05-27.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-05-26.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

                               6 October 1993                   SHOWMOUNT(8)

Pages that refer to this page: exports(5)mountd(8)