When I first left the Big Blue OS behind for the world of Linux, I wallowed in guesses over how my disk space was filling up. One thing that was hard to replace from my Windows XP days was the ...

Checking disk space To get a quick look at disk usage by user, you can run a command like the one below. Notice that it requires sudo and uses the “s” argument to give summaries by user.

Is your Linux server running out of storage space? If you're not sure how to find that out, these three commands are important to learn.

To help troubleshoot your Linux datacenter servers, you need the right tools. Jack Wallen introduces you to one such tool, iostat.