Top 20 terminal command of ubuntu 1. Kill a running application by its name killall [app_name] 2. Display disk space usage: df �h 3. Locate the installation directories of a program: whereis [app] 4. Mount an .iso file: mount /path/to/file.iso /mnt/cdrom �oloop 5. Record or capture a video of your desktop: ffmpeg -f x11grab -s wxga -r 25 -i :0.0 -sameq /tmp/out.mpg 6. Find out the Universally Unique Identifier (UUID) of your partitions: ls /dev/disk/by-uuid/ -alh 7. Show the top ten running processes (sorted by memory usage): ps aux | sort -nrk 4 | head 8. Make an audible alarm when an IP address goes online: ping -i 60 -a IP_address 9. Run the last command as root: sudo !! 10. Make a whole directory tree with one command: mkdir -p tmp/a/b/c 11. . restart : Restart the computer restart 1 2 . shutdown : To shutdown the computer from terminal shutdown -h 1 3 . gksudo : Run GUI Application with Root privilege gksudo nautilus 1 4 . wget : Download files from server GNU Wget or wget is ver...