2.1. What is Bash?
Descended from the Bourne Shell, Bash is a GNU product, the
"
B
ourne
A
gain
SH
ell." It's the standard command line interface on
most Linux machines. It excels at interactivity, supporting command line
editing, completion, and recall. It also supports configurable prompts -
most people realize this, but don't know how much can be done.