To reinstall MySQL v5.x on Linux, you can follow these steps: Stop the MySQL service: sudo systemctl stop mysqld Remove the existing MySQL installation: sudo yum remove mysql Remove the MySQL data directory: sudo rm -rf /var/lib/mysql Download the MySQL repository package: wget https://repo.mysql.com/mysql57-community-release-el7-11.noarch.rpm Install the MySQL repository package: sudo yum localinstall mysql57-community-release-el7-11.noarch.rpm Install MySQL: … Read more

Wget is a network downloader utility that is not included by default on macOS. However, you can install it using a package manager like Homebrew. Here are the steps to install wget on macOS using Homebrew: Install Homebrew if you don’t already have it installed. You can install it by running the following command in … Read more

To enable the Nginx status page, you need to add a location block to your Nginx configuration file that will return information about the status of Nginx. Here’s an example of how you can enable the Nginx status page: Open the Nginx configuration file in your preferred text editor: sudo nano /etc/nginx/nginx.conf Add the following … Read more

In Python, you can use the time module’s sleep function to add a delay to your script. The sleep function takes a single argument, which is the number of seconds to pause execution of the script. Here’s an example that pauses the execution of the script for 5 seconds: import time print(“Starting the script…”) time.sleep(5) … Read more

To see a detailed history of yum commands on CentOS or Red Hat Enterprise Linux (RHEL), you can use the yum history command with the following options: yum history info [transaction-id] Here’s what each option does: info: Show detailed information about a specific transaction. transaction-id: The transaction ID of the command you want to view. … Read more

To install the php-tidy module on CentOS or Red Hat Enterprise Linux (RHEL), follow these steps: Ensure that you have the correct repository enabled for your version of CentOS/RHEL. For example, for RHEL 7, you need to enable the EPEL repository: sudo yum install epel-release Use the following command to install the php-tidy extension: sudo … Read more

Glances is a system monitoring tool for Linux that provides an overview of the system’s performance and resource usage. With Glances, you can monitor CPU usage, memory usage, disk I/O, network traffic, and more, all in a concise and user-friendly interface. Here’s how to install and use Glances on a Linux system: Install Glances using … Read more

To list all the processes running on a Linux system by their effective and real user IDs (EUID and RUID), you can use the ps command with the following options: ps -e -o user=EUID,ruid=RUID,pid,cmd Here’s what each option does: -e: Show processes from all users. -o user=EUID,ruid=RUID: Specify the output format to include the effective … Read more

To delete a group in Linux using the groupdel command, follow these steps: Open a terminal window and log in as the root user, or use sudo to run the following command: sudo groupdel groupname Replace groupname with the name of the group you want to delete. If the group was successfully deleted, you will … Read more

Midnight Commander is a popular file manager for Linux systems, and it can be installed on CentOS/RHEL 6 using the following steps: Enable the EPEL repository: sudo yum install epel-release Install Midnight Commander using yum: sudo yum install mc Launch Midnight Commander by typing mc in the terminal: mc The Midnight Commander file manager should … Read more