What is a synonym for bash?

It depends on the context! "Bash" can have several meanings, so the best synonym will depend on what you're trying to say.

Here are some possibilities:

If you're talking about the Unix shell:

* Shell

* Command interpreter

* Command line interface (CLI)

If you're talking about criticizing someone or something:

* Criticize

* Berate

* Scold

* Reprimand

* Rebuke

* Condemn

* Attack

If you're talking about hitting something forcefully:

* Slam

* Whack

* Smash

* Pound

* Strike

Please provide more context so I can give you the most appropriate synonym!