A command executed in a Sandbox. For detached commands, you can wait to get a CommandFinished instance with the populated exit code. For non-detached commands, Sandbox.runCommand automatically waits and returns a CommandFinished instance. You can iterate over command output with logs.

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See

Sandbox.runCommand to start a command.

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Extended by

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Properties

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exitCode

exitCode: null | number;

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Accessors

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cmdId

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Get Signature

get cmdId(): string;
ID of the command execution.
Returns
string

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cwd

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Get Signature

get cwd(): string;
Returns
string

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startedAt

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Get Signature

get startedAt(): number;
Returns
number

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Methods

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logs()

logs(): AsyncIterable<{
  stream: "stdout" | "stderr";
  data: string;
}, any, any>;
Iterate over the output of this command. 
for await (const log of cmd.logs()) {
  if (log.stream === "stdout") {
    process.stdout.write(log.data);
  } else {
    process.stderr.write(log.data);
  }
}

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Returns

AsyncIterable<{ stream: "stdout" | "stderr"; data: string; }, any, any> An async iterable of log entries from the command output.

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See

Command.stdout, Command.stderr, and Command.output to access output as a string.

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wait()

wait(): Promise<CommandFinished>;
Wait for a command to exit and populate its exit code. This method is useful for detached commands where you need to wait for completion. For non-detached commands, Sandbox.runCommand automatically waits and returns a CommandFinished instance. 
const detachedCmd = await sandbox.runCommand({ cmd: 'sleep', args: ['5'], detached: true });
const result = await detachedCmd.wait();
if (result.exitCode !== 0) {
  console.error("Something went wrong...")
}

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Returns

Promise<CommandFinished> A CommandFinished instance with populated exit code.

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output()

output(stream: "stdout" | "stderr" | "both"): Promise<string>;
Get the output of stdout, stderr, or both as a string. NOTE: This may throw string conversion errors if the command does not output valid Unicode.

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Parameters

ParameterTypeDefault valueDescription
stream"stdout" | "stderr" | "both""both"The output stream to read: “stdout”, “stderr”, or “both”.

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Returns

Promise<string> The output of the specified stream(s) as a string.

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stdout()

stdout(): Promise<string>;
Get the output of stdout as a string. NOTE: This may throw string conversion errors if the command does not output valid Unicode.

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Returns

Promise<string> The standard output of the command.

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stderr()

stderr(): Promise<string>;
Get the output of stderr as a string. NOTE: This may throw string conversion errors if the command does not output valid Unicode.

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Returns

Promise<string> The standard error output of the command.

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kill()

kill(signal?: Signal): Promise<void>;
Kill a running command in a sandbox.

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Parameters

ParameterType
signal?Signal

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Returns

Promise<void> Promise<void>.