Use this command: df -h In the "Mounted on" column look for the name of the disk. Free space is shown in the "Avail" column.
To show just the available space for a specific disk: df -h | grep DISKNAME | awk '{print $4}' Substitute DISKNAME with the name of the disk.
Show a summary of disk usage: du -sh This shows free space as a number (eg 304G).
I usually write a blog post about once a week. The latest post can be viewed here: Democracy v Bureaucracy: It's not left versus right which I am complaining about: it is bureaucracy versus democracy! (posted 2025-11-06 at 21:25:07). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2025-10-08 Suicidal Empathy: We need empathy, but not suicidal empathy..