While Linux systems install with thousands of commands, bash also supplies a large number of “built-ins”—commands that are not sitting in the file system as separate files, but are part of bash itself ...

You've probably written dozens of Bash scripts by now. You may have used grep in a conditional statement or sed to transform small blocks of text inline. What if I told you that's incredibly ...

Bash has quietly made scripting on Unix systems a lot easier with its own regular expressions. If you're still leaning on grep and sed commands to get your scripts to do what you need from them, maybe ...