How do I check how much free space is on my usb stick? (Kubuntu 18.04)

Question

How do I check how much free space is on my usb? I don't see how I can do this, although I can access the usb stick's files when I insert it through Dolphin. Preferably a UI option, not command line.

Answer 1

You should look in the lower right corner of the Dolphin screen after you've inserted the USB stick. In the example, my USB stick has 3.7 GiB free.

If you don't see anything like that, open Dolphin, press Ctrl+Shift+, to bring up Dolphin Preferences. In there, click on General in the left pane and then on the Status Bar tab and ensure that Show Space Information is active.

Dolphin also allows you to examine the USB stick's properties. With the device inserted, move up to root and then to media. Open media. There you'll see, possibly among other folders, a folder with your username. Open that: you should see a folder bearing your USB stick's name (as seen by Dolphin). Right-click on that folder to get the window shown below. The General tab will show you what you want.

And, I know you asked for a route using the graphical interface but you can get the basic information, somewhat quicker, using the command line. See the last line in the output below on running df -h:

dkb@kububb:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           785M  1.6M  784M   1% /run
/dev/sda6       288G   26G  248G  10% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/sda1       496M   34M  463M   7% /boot/efi
tmpfs           785M     0  785M   0% /run/user/118
tmpfs           785M  4.0K  785M   1% /run/user/1000
tmpfs           785M   12K  785M   1% /run/user/1001
/dev/sdb1       466G  196G  271G  43% /media/dkb/TOSHIBA EXT