Command Line Tools for System Monitoring

From TecMint this guide on 20 useful administration tools. You have probably seen some of them, but there are a few gems I hadn't run across in all my years of Linux:

• vmstat

• lsof

• top

• htop

• tcpdump

• iptraf − IP traffic monitor: Surprisingly useful!

• iftop

• nethogs

• netstat

• iotop − what's eating your disk?

• iostat

• psacct

• monit

• arpwatch

• nmon