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    How to run a command on bash script exits

    By RahulAugust 2, 2022

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

    Linux Commands

    Convert String to Lowercase in Bash – Easier Than You Think

    By RahulAugust 1, 2022

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

    (Resolved) Key is stored in legacy trusted.gpg Keyring

    By RahulJuly 30, 2022

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

    (Resolved) Unknown collation: utf8mb4_unicode_520_ci

    By RahulJuly 30, 2022

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

    How to run a command or function on error in Bash Script

    By RahulJuly 30, 2022

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

    How to list all collections in MongoDB database

    By RahulJuly 30, 2022

    Question – How do I list all the collections available in the MongoDB database? MongoDB is a NoSQL database, that…

    Mongodb – Get the last record from collection

    By RahulJuly 30, 2022

    MongoDB find() method is used to select documents from a specified collection. It also set the cursor position to the…

    General Articles

    Running a Cron Every 10, 20 or 30 Minutes

    By RahulJuly 29, 2022

    Cron is a service that runs tasks at specified intervals in Unix/Linux systems. It’s commonly used for operational tasks like…

    General Articles

    Running a Cron Every 5 Minutes

    By RahulJuly 28, 2022

    Running a job every 5 minutes is a commonly used cron schedule. In this quick how-to article, you will learn…

    Check if a script is running as root user in Linux

    By RahulJuly 27, 2022

    Sometimes the shell scripts are required to run as the root user to perform some tasks with administrator privileges. Generally,…

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