first commit

test.js

@@ -0,0 +1,21 @@
+const {spawn}  = require('child_process');
+const fs = require('fs');
+const spawnObj = spawn('ping', ['127.0.0.1'], {encoding: 'utf-8'});
+spawnObj.stdout.on('data', function(chunk) {
+  console.log(chunk.toString());
+});
+spawnObj.stderr.on('data', (data) => {
+  console.log(data);
+});
+spawnObj.on('close', function(code) {
+  console.log('close code : ' + code);
+})
+spawnObj.on('exit', (code) => {
+  console.log('exit code : ' + code);
+  fs.close(fd, function(err) {
+    if(err) {
+      console.error(err);
+    }
+  });
+});
+