sys-utils/mountpoint.1

   1 .TH MOUNTPOINT 1 "August 2019" "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 .B "\-\-nofollow"
  32 Do not follow symbolic link if it the last element of the
  33 .I directory
  34 path.
  35 .TP
  36 .BR \-x , " \-\-devno"
  37 Show the major/minor numbers of the given blockdevice on standard output.
  38 .TP
  39 .BR \-V , " \-\-version"
  40 Display version information and exit.
  41 .TP
  42 .BR \-h , " \-\-help"
  43 Display help text and exit.
  44 .SH EXIT STATUS
  45 Zero if the directory or file is a mountpoint, non-zero if not.
  46 .SH AUTHOR
  47 .PP
  48 Karel Zak <kzak@redhat.com>
  49 .SH ENVIRONMENT
  50 .IP LIBMOUNT_DEBUG=all
  51 enables libmount debug output.
  52 .SH NOTES
  53 .PP
  54 The util-linux
  55 .B mountpoint
  56 implementation was written from scratch for libmount.  The original version
  57 for sysvinit suite was written by Miquel van Smoorenburg.
  58
  59 .SH SEE ALSO
  60 .BR mount (8)
  61 .SH AVAILABILITY
  62 The mountpoint command is part of the util-linux package and is available from
  63 https://www.kernel.org/pub/linux/utils/util-linux/.