sys-utils/mountpoint.1

   1 .TH MOUNTPOINT 1 "July 2014" "util-linux" "User Commands"
   2 .SH NAME
   3 mountpoint \- see if a directory or file is a mountpoint
   4 .SH SYNOPSIS
   5 .B mountpoint
   6 .RB [ \-d | \-q ]
   7 .I directory
   8 |
   9 .I file
  10 .sp
  11 .B mountpoint
  12 .B \-x
  13 .I device
  14
  15 .SH DESCRIPTION
  16 .B mountpoint
  17 checks whether the given
  18 .I directory
  19 or
  20 .I file
  21 is mentioned in the /proc/self/mountinfo file.
  22 .SH OPTIONS
  23 .TP
  24 .BR \-d , " \-\-fs\-devno"
  25 Show the major/minor numbers of the device that is mounted on the given
  26 directory.
  27 .TP
  28 .BR \-q , " \-\-quiet"
  29 Be quiet - don't print anything.
  30 .TP
  31 .BR \-x , " \-\-devno"
  32 Show the major/minor numbers of the given blockdevice on standard output.
  33 .TP
  34 .BR \-V , " \-\-version"
  35 Display version information and exit.
  36 .TP
  37 .BR \-h , " \-\-help"
  38 Display help text and exit.
  39 .SH EXIT STATUS
  40 Zero if the directory or file is a mountpoint, non-zero if not.
  41 .SH AUTHOR
  42 .PP
  43 Karel Zak <kzak@redhat.com>
  44 .SH ENVIRONMENT
  45 .IP LIBMOUNT_DEBUG=all
  46 enables libmount debug output.
  47 .SH NOTES
  48 .PP
  49 The util-linux
  50 .B mountpoint
  51 implementation was written from scratch for libmount.  The original version
  52 for sysvinit suite was written by Miquel van Smoorenburg.
  53
  54 .SH SEE ALSO
  55 .BR mount (8)
  56 .SH AVAILABILITY
  57 The mountpoint command is part of the util-linux package and is available from
  58 https://www.kernel.org/pub/linux/utils/util-linux/.