How do i reboot linux from nodejs

Question

I want to reboot/shutdown my linux OS from a node.js script. Only on things i can find are methods to stop a express server or a running function inside a script but not a way to shutdown/reboot my hole linux.

is there any way to do that?

Answer 1

The nodejs command is:

require('child_process').exec('sudo /sbin/shutdown -r now', function (msg) { console.log(msg) });

To avoid running nodejs as su you must give permission to run this command. Give permissions by creating a file under the /etc/sudoers.d/ directory, e.g.

$ sudo /etc/sudoers.d/mysudoersfile

Add the following lines and change pi in the below snippet to the user nodejs will be running as:

pi ALL=/sbin/shutdown
pi ALL=NOPASSWD: /sbin/shutdown

This technique can also be applied to other commands. For example if you want to allow the user (in turn nodejs) to restart networking then add the following to your sudoers file.

pi ALL=/etc/init.d/networking
pi ALL=NOPASSWD: /etc/init.d/networking

Answer 2

thanks for so far. I got a solution thats working with that now. only it has no response that the command has been executed. For the rest it's working.

code:

console.log('loaded.....');
var exec = require('child_process').exec;

function execute(command, callback){
    exec(command, function(error, stdout, stderr){ callback(stdout); });
}



execute('shutdown -r now', function(callback){
    console.log(callback);
});