Struct ShellCommand 

pub struct ShellCommand {
    pub args: Vec<String>,
    pub redirections: Vec<Redirection>,
    pub compound: Option<Box<Ast>>,
}

Represents a single command in a pipeline.

A shell command consists of:

• Arguments (command name and parameters)
• Redirections (I/O redirection operations)
• Optional compound command (for subshells, groups, etc.)

If compound is present, it takes precedence over args during execution.

Fields

args: Vec<String>

Command arguments (first element is the command name).

For simple commands like ls -la, this would be ["ls", "-la"].

redirections: Vec<Redirection>

All redirections in order of appearance.

Redirections are processed left-to-right per POSIX specification. For example, in cmd >file1 2>&1 >file2, the redirections are:

1. Redirect stdout to file1
2. Duplicate stderr to stdout (which points to file1)
3. Redirect stdout to file2 (stderr still points to file1)

compound: Option<Box<Ast>>

Optional compound command (subshell, command group, etc.).

If present, this takes precedence over args during execution. Used for constructs like (subshell) | cmd or { group; } | cmd.

Trait Implementations

impl Clone for ShellCommand

fn clone(&self) -> ShellCommand

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ShellCommand

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ShellCommand

fn default() -> ShellCommand

Returns the “default value” for a type.

impl PartialEq for ShellCommand

fn eq(&self, other: &ShellCommand) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ShellCommand

impl StructuralPartialEq for ShellCommand