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Other 2021-11-05 04:50:12
example code of waitpid
#include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> #include <stdlib.h> #include <errno.h> #include <sys/wait.h> #include <string.h> int main(){ int... Add solution -
Other 2021-10-30 00:01:06
kill roslaunch
#!/usr/bin/env python import rospy import subprocess import signal child = subprocess.Popen(["roslaunch","ros_arduino_python","arduino.launch"]) #child.wait() #You can use this line to block the parent process untill the ch... Add solution -
Javascript 2021-10-26 20:46:14
nodejs restart process
Generally process managers are used to (automatically) restart processes, such as monit, PM2, nodemon, forever, etc. However, you could restart from the process itself by simply spawning a detached child process that waits some period of time and then ex... Add solution -
Javascript 2021-10-23 10:02:19
node spawn
const { spawn } = require('child_process'); const ls = spawn('ls', ['-lh', '/usr']); ls.stdout.on('data', (data) => { console.log(`stdout: ${data}`); }); ls.stderr.on('data', (data) => { console.error(`stderr: ${data}`); }); ls.on('close', (c... Add solution -
Javascript 2021-10-13 15:25:09
node js interview questions interviewbit
What is Node.js? What is it used for? Q2. What is Event-driven programming? Q3. What is Event loop in Node.js work? And How does it work? Q4. What is REPL in Node.js? Q5. What is the purpose of module.exports in Node.js? Q6. What is the difference bet... Add solution -
Javascript 2021-10-12 18:21:07
javascript interview questions
What is Node.js? What is it used for? Q2. What is Event-driven programming? Q3. What is Event loop in Node.js work? And How does it work? Q4. What is REPL in Node.js? Q5. What is the purpose of module.exports in Node.js? Q6. What is the difference bet... Add solution