When you write a Node script to run generic shell commands it is worth knowing how to run multiple shell commands. child_process.exec(): spawns a shell and runs a command within that shell, passing the stdout and stderr to a callback function when complete.
Please find the sample code below:
const { exec } = require("child_process");
let commandOne = "ls -l"; // display all files in current directory with (-l) long format
let commandTwo = "whoami"; // print the current user
let commandThree = "pwd"; //print the name of current directory
exec(`${commandOne} && ${commandTwo} && ${commandThree}`, (error, stdout, stderr) => {
if (error) {
console.log(`error: ${error.message}`);
return;
}
if (stderr) {
console.log(`stderr: ${stderr}`);
return;
}
console.log(`Output: ${stdout}`);
});Output
This is a small article but it might save your time at some point 🙂
