What is the abbreviation for command?

There isn't a universally recognized abbreviation for "command".

Here are some possibilities depending on the context:

* CMD: This is the abbreviation used for the command prompt in Windows operating systems.

* Cmmd: This is a less common abbreviation, sometimes used in technical contexts.

* Cmd: This is a shorter version of CMD, often used in informal settings.

In general, it's best to avoid abbreviations unless the context is clear and the abbreviation is commonly understood.