Bash is an acronym of Bourne-Again Shell, which is the successor of Bourne Shell distributed with most of the Linux…

In the world of programming, efficiency is key. Automation is one of the most powerful tools in a developer’s toolkit,…

Some of the tasks are required to run twice per day. You can use */12 in hours section to schedule…

Shell scripts are handy for automating tasks like backup databases, clearing log files, etc. You need to perform some tasks…

Question: How do I convert all the characters to the lowercase of a string in the bash shell script? In…

I recently created a new Ubuntu 22.04 LTS Linux virtual machine. When I attempted to set up the PostgreSQL server…

A collation is a set of rules that defines how to compare and sort character strings in a database server.…

We can use the trap command to catch the error signal system by the system during script execution. Then you…

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…