Homebrew is a package manager for Mac OS that allows you to easily install and manage software packages. To install Homebrew on Mac OS, you can use the following steps: Open the Terminal application on your Mac. Run the following command in the terminal to install Homebrew: /bin/bash -c “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/main/install.sh)” Once the installation … Read more

ShellCheck is a static analysis tool for shell scripts that helps to identify and fix common issues and errors. You can install ShellCheck on FreeBSD using the package manager pkg. First, ensure that the package manager is updated by running the command: pkg update Next, install ShellCheck by running the command: pkg install shellcheck Once … Read more

In awk, you can force it to not print a newline at the end of the output by using the “ORS” variable. This variable controls the output record separator and by default, it is set to a newline character. You can set the ORS variable to an empty string to prevent awk from printing a … Read more

On Alpine Linux, you can configure a static IP address by editing the network configuration files. To view the current network configuration, you can use the command ip a or ifconfig. To configure a static IP address, you need to edit the network configuration file located at /etc/network/interfaces. You can use a text editor such … Read more

On Alpine Linux, you can view the CPU temperature using the “sensors” command, which is a command-line utility for monitoring the temperature of various hardware components. To view the CPU temperature, you need to first install the “lm_sensors” package by running the following command: apk add lm_sensors Once the package is installed, you can use … Read more

On Linux systems that use systemd, it may be necessary to restart systemd without rebooting the entire system. This can be done by reloading the systemd manager configuration and restarting the systemd-journald and systemd-udevd services. First, check the status of systemd-journald and systemd-udevd services by running the following command: systemctl status systemd-journald systemd-udevd Next, reload … Read more

vnStat is a command-line tool that can be used to monitor and track network traffic on Alpine Linux. You can install vnStat on Alpine Linux using the package manager apk. To install vnStat, you need to run the following command: apk add vnstat To start the vnStat daemon and make it start automatically at boot … Read more

Curl is a command-line tool for transferring data using various protocols, it is commonly used to download files from the internet. You can install curl on Alpine Linux using the package manager apk. To install curl, you need to run the following command: apk add curl To verify the installation, check the version of curl … Read more

Postfix is a popular open-source mail transfer agent (MTA) that can be used to send emails on Red Hat Enterprise Linux (RHEL) and CentOS 8 using Amazon Web Services (AWS) Simple Email Service (SES). To set up Postfix to send emails with Amazon SES on RHEL/CentOS 8, you can follow these steps: Install the Postfix … Read more

In Red Hat Enterprise Linux (RHEL) and CentOS 8, you can enable automatic updates using the “dnf-automatic” package, which is a package that runs automatic updates and provides various options for configuring the update schedule and behavior. To enable automatic updates on RHEL/CentOS 8, you can follow these steps: Install the “dnf-automatic” package by running … Read more