Like sh, Bash (Bourne Again Shell) is a command language processor and a shell. It’s the default login shell on most Linux distributions. Bash is a superset of sh, which means that Bash supports features of sh and provides more extensions on top of that.
Is Bash different from shell?
The difference between bash and Shell is Bash is a superset of sh, which implies it supports sh’s functionality while also adding additional extensions. The majority of the commands work in the same way they do in sh, whereas a shell is a user-to-operating-system interface that allows a user to engage with a computer.
Does Linux use bash?
On Linux, bash is the standard shell for common users. This shell is a so-called superset of the Bourne shell, a set of add-ons and plug-ins. This means that the Bourne Again shell is compatible with the Bourne shell: commands that work in sh, also work in bash.