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 ...

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 ...

Basic Allowance for Subsistence (BAS) pays for the cost of a military member's meals when dining at their permanent duty station. Although BAS is meant to offset the cost of a member's meals, it doesn ...

Medical Readiness Command, West provides regionally ready, globally responsive medical forces, health service support and force health protection to conserve the fighting strength; enable the ...

The Mount and Blade games are great for customisation, modding, and just generally playing around with. While many might see console commands as cheating, they do add possibilities and fun new ways to ...

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 ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Khadija Khartit is a strategy, investment, and funding expert, and an educator of fintech and strategic finance ...