JAVA_HOME is an environment variable used by various Java-based applications to locate JVM (JDK) on any system. Similarly, Maven also…
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Recent versions of Debian and Ubuntu have moved away from the apt-key command for importing GPG signing keys, a shift…
Many of the applications required weekly cron jobs to perform a few tasks. For example, perform weekly maintenance, cleanup disk…
Some of the tasks are required to run twice per day. You can use */12 in hours section to schedule…
I recently created a new Ubuntu 22.04 LTS Linux virtual machine. When I attempted to set up the PostgreSQL server…
Question – How do I list all the collections available in the MongoDB database? MongoDB is a NoSQL database, that…
MongoDB find() method is used to select documents from a specified collection. It also set the cursor position to the…
Cron is a service that runs tasks at specified intervals in Unix/Linux systems. It’s commonly used for operational tasks like…
Running a job every 5 minutes is a commonly used cron schedule. In this quick how-to article, you will learn…
Sometimes the shell scripts are required to run as the root user to perform some tasks with administrator privileges. Generally,…