Syntax

• child_process.exec(command[, options][, callback])
• child_process.execFile(file[, args][, options][, callback])
• child_process.fork(modulePath[, args][, options])
• child_process.spawn(command[, args][, options])
• child_process.execFileSync(file[, args][, options])
• child_process.execSync(command[, options])
• child_process.spawnSync(command[, args][, options])

Remarks

When dealing with child processes, all of the asynchronous methods will return an instance of [ChildProcess](<https://nodejs.org/api/child_process.html#child_process_class_childprocess>), while all the synchronous versions will return the output of whatever was run. Like other synchronous operations in Node.js, if an error occurs, it will throw.