Will I be able to login? What havoc will it cause, if any? How will it mess up m terminal? There are login and non-login terminals too. How will it affect those?
It is fine not to have a bashrc file (apparently you mean a personal
The effects of not having the default bashrc file can be examined by reading what the default .bashrc file changes in your shell environment. There is nothing critical in the .bashrc file; bash will simply use (conservative) defaults when it is being run (for example, no aliases, no completion, no color
If the shell is not interactive, the default
If the system-wide
and look at the INVOCATION section. That will explain how bash starts up.