Nodejs subprocesses

CLI Args

process.argv  // array of cli arguments

Environment Variables

process.env.FOO  // access envvar 'FOO'

Exit Codes

process.exit(1)       # terminate with exit code 1
process.exitCode = 1  # use exitcode at termination

Signals

let pid = 1234
process.kill(pid, 'SIGTERM')
os.constants.signals  // { 'SIGSYS': 31, ...}