Module shell 

VeridianOS Shell Implementation

Basic shell with command parsing and built-in commands.

Module structure

• mod.rs - Shell struct, main loop, command dispatch, and public types
• [commands] - All built-in command implementations
• [state] - Global singleton management (init, get_shell, try_get_shell)

Structs

EnvVar

Shell environment variable

Shell

VeridianOS Shell

ShellConfig

Shell configuration

Enums

CommandResult

Command execution result

Traits

BuiltinCommand

Shell built-in command

Functions

get_shell

Get the global shell.

init

Initialize the shell.

run_shell

Run shell as a process.

try_get_shell

Try to get the global shell (non-panicking).