Module child_process ngidini Node kanggo menjalankan program/perintah liyane (perintah shell, skrip, binari liyane) minangka proses OS sing kapisah. Diperlukake kanggo nglibatake piranti sistem, menjalankan karya CPU-heavy ana jaba proses utama, utawa ngatur program liyane.
Empat metode utama
exec → run a shell command, buffer all output (simple, small output)
execFile → run a file directly (no shell — safer, faster)
spawn → stream output (for large output / long-running processes)
fork → spawn a new NODE process with an IPC channel (Node-to-Node)
