#MAC COMMAND LINE LIST UNMOUNTED DISKS PORTABLE#

Vendor ID: 0x0928 (Oxford Semiconductor Ltd.) This is an example of the data it prints out for a USB drive: 1394A/USB2.0/eSATA combo drive: To try everything, you could do system_profiler (which lists all data) then search for anything following 'Mount Point:' and unmount whatever is after that.

#MAC COMMAND LINE LIST UNMOUNTED DISKS PORTABLE#

It's not perfectly portable across different systems to just do USB then FireWire then Thunderbolt because there could be different connections. Once you parse out the mount points, you can unmount those drives.

system_profiler -listDataTypes will give you all data types. system_profiler SPUSBDataType will give you all USB devices and their mount points, and system_profiler SPFireWireDataType does the same for FireWire devices. You could try using system_profiler with different data types. Prtl=`diskutil info $ | grep Protocol | cut -d ' ' -f 21`ġ.Is there a way to identify external drive without using diskutil info? The reason is diskutil info starts up sleeping drive, my script is very slow.Ģ.Are there any much more smart way? I have Googled so much, but I can't find a way which I want. My disk list is as follows: $ diskutil listģ: Apple_Boot Recovery HD 650.0 MB disk0s3Ġ: Apple_HFS Macintosh HD *496.3 GB disk1Ģ: Apple_HFS Time Machine 999.9 GB disk2s2Ģ: Microsoft Basic Data USB HD 4 749.9 GB disk3s2Ģ: Microsoft Basic Data Backup 499.9 GB disk4s2Ġ: Apple_partition_scheme *122.9 GB disk8ĭiskutil list | grep -oE 'disks2' | while read i I am trying to write a shell script to unmount/mount all external drive on OS X.

Mac command line list unmounted disks