Electron 按 windows、mac(darwin) 和 linux 上的进程名称杀死进程

Question

How can I kill processes by process names in Windows, Darwin, and Linux ? Like, assume the process I need to kill is 'vlc.exe' (basically close the application).

Here is the function I wrote to check whether this process is running or not.

const isRunning = (query, cb) => {
    let platform = process.platform;
    let cmd = '';
    switch (platform) {
        case 'win32': cmd = `tasklist`; break;
        case 'darwin': cmd = `ps -ax | grep ${query}`; break;
        case 'linux': cmd = `ps -A`; break;
        default: break;
    }
    exec(cmd, (err, stdout, stderr) => {
        stdout = stdout.toLowerCase().replace(/\s/g, '');

        cb({status: stdout.indexOf(query.toLowerCase()) > -1});
    });
}

I call this function as

isRunning('vlc.exe', (vlc) => {
    console.log({ vlc }); // true|false
});

So, I know that VLC is running or not. Now I want to close it if it`s running. For windows its taskkill but for darwin and Linux? Or is there any other way to kill processes?

Answer 1

The PID is in the ps output. If pidof is available you could do kill $(pidof vlc) . Rather than write your own code to figure out PIDs and do the killing, you could also use a well-tested module for the same purpose.

Answer 2

On macOS and most probably on linux as well. process name is VLC . System are case sensitive so looking for vlc.exe or vlc will not find any running process.

you can play around by doing something like

kill $(ps aux | grep -i 'vlc' | awk '{print $2}')

which will

• ps aux - look for all process
• grep -i 'vlc' filter ps out by capturing process with name VLC or vlc (think the -i parameter which force the case insensitive).
• awk '{print $2}' only capture the PID number.
• kill ask the system to graceful stop the process by given PID.