💡 Sync Version: This documentation covers the asynchronous API. For synchronous operations, see
Command.⚡ Performance Advantage: Async API enables concurrent operations with 4-6x performance improvements for parallel tasks.
- Command Execution Guide - Learn how to execute commands in sessions
The Command module provides methods for executing shell commands within a session in the AgentBay cloud environment. Commands support configurable timeouts and optional working directory or environment settings.
class AsyncCommand(AsyncBaseService)Async command execution service for session shells in the AgentBay cloud environment.
Use this class for non-blocking command execution; for blocking/synchronous usage,
refer to the Command service in the sync API.
async def execute_command(
command: str,
timeout_ms: int = 50000,
cwd: Optional[str] = None,
envs: Optional[Dict[str, str]] = None) -> CommandResultExecute a shell command with optional working directory and environment variables.
Executes a shell command in the session environment with configurable timeout, working directory, and environment variables. The command runs with session user permissions in a Linux shell environment.
Arguments:
command: The shell command to execute
timeout_ms: Timeout in milliseconds (default: 50000ms/50s). Maximum allowed
timeout is 50000ms (50s). If a larger value is provided, it will be automatically limited to 50000ms cwd: The working directory for command execution. If not specified, the command runs in the default session directory envs: Environment variables as a dictionary of key-value pairs. These variables are set for the command execution only
Returns:
CommandResult: Result object containing:
- success: Whether the command executed successfully (exit_code == 0)
- output: Command output for backward compatibility (stdout + stderr)
- exit_code: The exit code of the command execution (0 for success)
- stdout: Standard output from the command execution
- stderr: Standard error from the command execution
- trace_id: Trace ID for error tracking (only present when exit_code != 0)
- request_id: Unique identifier for this API request
- error_message: Error description if execution failed
Raises:
CommandError: If the command execution fails due to system errors
Example:
session = agent_bay.create().session result = await session.command.execute_command("echo 'Hello, World!'") print(result.output) print(result.exit_code) await session.delete()
Example:
result = await session.command.execute_command( "pwd", timeout_ms=5000, cwd="/tmp", envs={"TEST_VAR": "test_value"} ) print(result.stdout) await session.delete()
async def run(command: str,
timeout_ms: int = 50000,
cwd: Optional[str] = None,
envs: Optional[Dict[str, str]] = None) -> CommandResultAlias of execute_command() for better ergonomics and LLM friendliness.
async def exec(command: str,
timeout_ms: int = 50000,
cwd: Optional[str] = None,
envs: Optional[Dict[str, str]] = None) -> CommandResultAlias of execute_command() for better ergonomics and LLM friendliness.
- Always specify appropriate timeout values based on expected command duration
- Handle command execution errors gracefully
- Use absolute paths when referencing files in commands
- Be aware that commands run with session user permissions
- Clean up temporary files created by commands
Related APIs:
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