[Feature] More built-in commands

[Ph0enixKM]

This issue is about implementing the following commands:

• cd (cd path: Text -> cd path) failable: directory does not exist
• mv (mv a: Text, b: Text -> mv a b) failable: no permissions
• rm (rm path: Text -> rm -rf path) failable: no permissions / file does not exits
• exit (exit c: Num exit c)

[Mte90]

On #185 I added is_root and is_command that I think that should be built-in commands.
The second one just check if a command exists.

[Ph0enixKM]

I'm still thinking about that ORM style you suggested. To make such a nice way to compose commands would be a game changer

[Mte90]

I think that we need to define built-in should be one shot actions, instead ORM style should be more complex commands with various parameters.
The ORM style requires a Class engine in Amber but for that we can discuss in the other ticket.

[b1ek]

we should also add [[ and [ as builtins for use like if [[ ... ]]

[Ph0enixKM]

we should also add [[ and [ as builtins for use like if [[ ... ]]

I think that the [[ and [ commands are the workaround to Bash. We can implement something that makes more sense than this

[Mte90]

The ticket is not yet closed as the topic was to add more builtin commands and there was a PR linked that doesn't involve that.