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Full Discussion: if (disk is mounted) unmount if (disk is unmounted) mount
Top Forums Shell Programming and Scripting if (disk is mounted) unmount if (disk is unmounted) mount Post 302503797 by hollister on Friday 11th of March 2011 05:20:01 PM
Old 03-11-2011
Question if (disk is mounted) unmount if (disk is unmounted) mount
Hey there, sorry if this is a bit too much of a noob question, trying to get to grips with a simple bash script - but i have done ZERO bash scripting.

basically having worked out how to mount and unmount disks using:
disktool -m *device* & disktool -e *device*

- and looking at the result of disktool -l
i see that from the results each device has a parameter Mountpoint = '/Volumes/My Disk' if the "My Disk" is mounted - or - Mountpoint = '' if unmounted.

Basically I am looking to write a script that looks to see if a partition on my external disk is mounted or not, if it is mounted - then the disk is unmounted - - and if it is unmounted the disk is mounted.

So this this disk is disk1s2. How do I query the Mountpoint and see what the result is?

Basically :

if (disk1s2.Mountpoint == "") {
disktool -m disk1s2
}

if (disk1s2.Mountpoint == "/Volumes/My Disk") {
disktool -e disk1s2
}

^ is obviously very, very, very wrong for a bash script - but you get the gist.

Any help would be greatly appreciated
 

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LEARN ABOUT HPUX

umountall

mountall(1M)															      mountall(1M)

NAME

       mountall, umountall - mount and unmount multiple file systems

SYNOPSIS

       FStype] [file_system_table |
       FStype]

DESCRIPTION

       is  used  to  mount  file  systems  according  to  file_system_table.  By default, is the file_system_table.  If a dash is specified, reads
       file_system_table from the standard input; the standard input must be in the same format as the

       Before each file system is mounted, a check is done using (see fsck(1M)) to ensure that the file system is mountable.  If the  file  system
       is not mountable, it is repaired by before the mount is attempted.

       causes all mounted file systems except the non-removable file systems such as to be unmounted.

   Options
       and recognize the following options:

	      Specify the file system type
			     (FStype) to be mounted or unmounted.

	      Specify action on local file systems only.

	      Specify action on remote file systems only.

	      Send a	     signal to processes that have files opened.

	      Attempt to mount all the unmounted file systems. This option will not perform the file system consistency check and repair.

	      Perform the file system consistency check and repair on all unmounted file system. This option will not mount the file systems.

DIAGNOSTICS

       Error and warning messages may originate from or See fsck(1M), mount(1M), or fuser(1M) to interpret the error and warning messages.

EXAMPLES

       Mount all unmounted file systems listed in

       Mount all local file systems listed in

       Mount all remote file systems listed in

       Mount all local hfs file systems:

       Unmount all NFS file systems and kill any processes that have files opened in the file system:

WARNINGS

       especially with the option, should be used with extreme caution, because it can cause severe damage.

       The option may not be available in future releases.

       may not be effective with some cases of LOFS file systems.

FILES

       Static information about the file systems
       Mounted file system table

SEE ALSO

       fsck(1M), mount(1M), fuser(1M), mnttab(4), fstab(4), signal(2)

																      mountall(1M)
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