Function execute 

pub async fn execute(
    cmd_context: ExecutionContext<'_>,
    process_group_id: &mut Option<i32>,
    args: Vec<CommandArg>,
    use_functions: bool,
    path_dirs: Option<Vec<String>>,
) -> Result<ExecutionSpawnResult, Error>

Executes a simple command.

The command may be a builtin, a shell function, or an externally executed command. This function’s implementation is responsible for dispatching it appropriately according to the context provided.

Arguments

• cmd_context - The context in which the command is being executed.
• process_group_id - The process group ID to use for externally executed commands. This may be modified if a new process group is created.
• args - The arguments to the command.
• use_functions - If true, the command name will be checked against shell functions; if not, shell functions will not be consulted.
• path_dirs - If provided, these directories will be searched for external commands; if not provided, the default search logic will be used.