Unknown Bash Tips and Tricks For Linux

“Familiarity breeds ennui, and even though Bash is the default
Linux command shell used daily by hordes of contented users, it
contains a wealth of interesting and useful features that don’t get
much attention. Today we shall learn about Bash builtins and
killing potential.

Bash has a bunch of built-in commands, and some of them are
stripped-down versions of their external GNU coreutils cousins. So
why use them? You probably already do, because of the order of
command execution in Bash:

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