path: root/sys-utils/mountpoint.1

.\" -*- nroff -*-
.TH MOUNTPOINT 1 "June 2011" "util-linux" "User Commands"
.SH NAME
mountpoint \- see if a directory is a mountpoint
.SH SYNOPSIS
.B mountpoint
.RB [ \-q ]
.RB [ \-d ]
.I directory

.B mountpoint
.RB \-x
.I device

.SH DESCRIPTION
.B mountpoint
checks if the directory is mentioned in the /proc/self/mountinfo file.
.SH OPTIONS
.IP "\fB\-h, \-\-help\fP"
Display help text and exit.
.IP "\fB\-q, \-\-quiet\fP"
Be quiet - don't print anything.
.IP "\fB\-d, \-\-fs\-devno\fP"
Print major/minor device number of the filesystem on stdout.
.IP "\fB\-x, \-\-devno\fP"
Print major/minor device number of the blockdevice on stdout.
.SH EXIT STATUS
Zero if the directory is a mountpoint, non-zero if not.
.SH AUTHOR
.PP
Karel Zak <kzak@redhat.com>
.SH ENVIRONMENT
.IP LIBMOUNT_DEBUG=0xffff
enables debug output.
.SH NOTES
.PP
The util-linux
.B mountpoint
implementation was written from scratch for libmount. The original version
for sysvinit suite was written by Miquel van Smoorenburg.

.SH SEE ALSO
.BR mount (8)
.SH AVAILABILITY
The mountpoint command is part of the util-linux package and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux/.