What's Bash in Mac?

Bash stands for "Bourne again shell." There are a number of different shells that can run Unix commands, and on the Mac, Bash is the one used by Terminal. If you want to make the window bigger, click on the bottom right corner and drag it outwards.

What is the use of bash?

Bash (also known as the “Bourne Again SHell”) is an implementation of Shell and allows you to efficiently perform many tasks. For example, you can use Bash to perform operations on multiple files quickly via the command line.

Is bash on Mac the same as Linux?

Mac OS X is a Unix OS and its command line is 99.9% the same as any Linux distribution. bash is your default shell and you can compile all of the same programs and utilities. There's no notable difference. You can also find various projects like MacPorts which provide package management for Mac.