node.js how to check a process is running by the process name?

Question

i run node.js in linux, from node.js how to check if a process is running from the process name ? Worst case i use child_process, but wonder if better ways ?

Thanks

Answer 1

Here's another version of the other answers, with TypeScript and promises:

export async function isProcessRunning(processName: string): Promise {
  const cmd = (() => {
    switch (process.platform) {
      case 'win32': return `tasklist`
      case 'darwin': return `ps -ax | grep ${processName}`
      case 'linux': return `ps -A`
      default: return false
    }
  })()

  return new Promise((resolve, reject) => {
    require('child_process').exec(cmd, (err: Error, stdout: string, stderr: string) => {
      if (err) reject(err)

      resolve(stdout.toLowerCase().indexOf(processName.toLowerCase()) > -1)
    })
  })
}

const running: boolean = await isProcessRunning('myProcess')