what does the command bash do when typed in a linux terminal? [closed]

Question

When I type bash in to linux cli, it gives me bash-3.2$ so what does it do?

Answer 1

When you run bash you are creating a new bash subshell within your current shell (even if your current shell was already bash), the $SHLVL environment variable will also be incremented within that new shell.

Answer 2

It's a shell - think of it like the cmd window in Windows(if that's what you're used to). It allows you to execute commands. I would have a look through the wikipedia entry as a starting point.