If you find your thrill delving into the networking side of Unix, you'll find that there are lots of commands to give you all the insights you might want. I will never forget my first ping. Working on ...

Click for a PDF with this and four other essential Linux articles. And, if you’ve ever heard anyone say that for Unix, everything is a file, you might not be too surprised to learn that lsof works ...

The UNIX ping command lets you test network servers and latency. Here's how to use it in the macOS Terminal app. The UNIX ping command is a tiny UNIX network tool that allows you to test your network, ...

That should, in theory, put the output of the command on the clipboard. But in this case, it wasn’t working. After much investigation, what I learned is that some Unix commands, httpd -t included, don ...

When Apple announced the release of Mac OS X, many Mac users were stunned: here was a new operating system based on the venerable Unix, which, they feared, would call into question the Mac’s legendary ...

Is there a command in Unix, but in OS X in particular, which will display the IPs of all the machines in a LAN? And if so, is there a GUI version of said program? If such program exists, what would ...

Have you ever wanted to force a script to act differently when it is invoked by cron? If the script is run interactively, for example, you might want the script to prompt the user for some information ...