Create a Cron Job Linux | Kodekloud Enginner Task

In this post, I am going to show you how to create a cron job.

Create a cron job Kodekloud Task details:

The Nautilus system admins team has prepared scripts to automate several day-to-day tasks. They want them to be deployed on all app servers in Stratos DC on a set schedule. Before that they need to test similar functionality with a sample cron job. Therefore, perform the steps below:

a. Install cronie package on all Nautilus app servers and start crond service.

b. Add a cron */5 * * * * echo hello > /tmp/cron_text for root user.

Important Note: Perform the below commands based on your question. The server, user name & other details might differ. So please read the task carefully before executing it.

Solution:- To create a cron job follow the steps below:

Step 1: To start with login to App Server 1

$ ssh tony@stapp01

Enter the password provided to you using the documentation for authentication.

Step 2: Switch to root user

$ sudo su -

Enter the password to authenticate to the root user.

Step 3: Install cronie package on the server

# yum install cronie -y

Step 4: Enable and Start cron service and check the status if it is started.

# systemctl enable crond

# systemctl start crond

# systemctl status crond

Step 5: Create a cronjob as per the task for the root user. Paste the (*/5 * * * * echo hello > /tmp/cron_text) and save it.

# crontab -e

Step 6: After adding the corn check the corn job for the root user with the below command:

# crontab -l

Important: You have to do this in all app servers stapp01, stapp02, stapp03. Here I have done it only on app server 1. Follow the same steps in all other app servers.

Once done on all 3 servers click on submit and finish the task.