Check for mounted volume via terminal?

Question

Check for mounted volume via terminal?

I want to write a simple bash script that will unmount a volume if it's already mounted. How do i check to see if the volume is mounted?

if [/Volumes/Backup is mounted ]
umount /Volumes/Backup
fi

PowerMac G5 (10.5.8) / MBP 15" / MBP 17" / Mini, Mac OS X (10.6.2)

Posted on Apr 7, 2010 12:28 PM

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Answer 1

Apr 7, 2010 1:21 PM in response to Brian S. Campbell

Brian S. Campbell wrote:
I want to write a simple bash script that will unmount a volume if it's already mounted. How do i check to see if the volume is mounted?

Try this:

if \[ -d /Volumes/Backup \]; then
umount /Volumes/Backup
fi

That "umount" command will require root privileges, so you'll have to arrange that.

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Answer 2

BobHarris

Level 9

56,777 points

Apr 7, 2010 1:44 PM in response to William-Boyd-Jr

If you want to make sure it is really mounted, and not just a random directory you could add some additional testing


if [[ $(mount | awk '$3 == "/Volumes/Backup" {print $3}') != "" ]]; then
 echo /Volumes/Backup is mounted
fi

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