Must-Have-CLI-Tools

Must-have tools for administering via the CLI.

If you SSH into unix boxes and aren't running these tools, you probably should be.

htop

sudo apt-get install htop
htop - an interactive process viewer for Linux

ncdu

sudo apt-get install ncdu
ncdu - NCurses Disk Usage

mtr

sudo apt-get install mtr mtr - mtr combines the functionality of the 'traceroute' and 'ping' programs in a single network diagnostic tool