The most important networking command in Linux might be ping. This command lets you check if a remote machine is responding ...

These are the formal rules for forming basic UNIX regular expressions. For some simple examples, skip to Simple Examples. The rules come from the Solaris 7 regexp(5) manual page. The I2A2 reflector ...

Archivist Al Kossow of Bitsavers, who led the technical recovery, described the process as "easy" as such efforts go. The tape, he explained, had "a pretty ...

Fallout: New Vegas console commands form the best shortcut to quick HUD adjustments, weather changes, quest progression ...

What Am I Doing? What is Going On? You are learning a different way to interact with a computer, working at the command line. It means typing commands at a prompt - no mouse. Typing only! Why? What is ...

With -w, grep will match “error” but skip things like “errors” or “terror.” The difference can be subtle, but when you’re ...

This Fallout 4 Console Commands and Cheats list provides everything you need to know, including how to enable cheat codes on PC to unlock the likes of God Mode and Kill All NPCs, as well as how to ...

This guide explains top 10 dangerous Linux commands in simple terms. Learn why they are risky and how beginners should think ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Logs, databases, and caches grow under /var. Learn why Linux admins monitor the /var directory to prevent disk issues and service failures.