Module commands 

Command trait and built-in command implementations.

Structs

BracketCommand

The [ command: evaluate conditional expressions (requires closing ]).

CatCommand

The cat command: concatenate files and/or stdin.

CommandContext

Context passed to command execution.

CommandMeta

Declarative metadata for a command, used by –help and the help builtin.

CommandResult

Result of executing a command.

EchoCommand

The echo command: prints arguments to stdout.

EgrepCommand

egrep — alias for grep -E.

FalseCommand

The false command: always fails (exit code 1).

FgrepCommand

fgrep — alias for grep -F.

FlagInfo

Metadata about a single command flag.

LsCommand

The ls command: list directory contents.

MkdirCommand

The mkdir command: create directories (-p for parents).

PwdCommand

The pwd command: print working directory.

TestCommand

The test command: evaluate conditional expressions.

TouchCommand

The touch command: create empty file or update mtime.

TrueCommand

The true command: always succeeds (exit code 0).

Enums

FlagStatus

Support status of a command flag.

Traits

VirtualCommand

Trait for commands that can be registered and executed.

Functions

format_help

Format help text from CommandMeta for display via --help.

register_default_commands

Register the default set of commands.

unknown_option

Standard error for unrecognized options, matching bash/GNU conventions.

Type Aliases

ExecCallback

Callback type for sub-command execution (e.g. xargs, find -exec).