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How website valuation actually works, what traffic estimates can and cannot tell you, and which once-standard metrics have quietly stopped existing.
How to install ShellCheck on FreeBSD – A shell script static analysis tool
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.rn rn First, ensure that the package manager is updated by running the command: rn rn rn rn pkg update rn rn rn rn Next,
How to force awk not to print a newline
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 newline at the
How to configure static IP address on Alpine Linux
On Alpine Linux, you can configure a static IP address by editing the network configuration files.rn rn To view the current network configuration, you can use the command ip a or ifconfig . rn To configure a static IP address, you need to edit the network configuration file located at /etc/network/i
How To View CPU Temperature On Alpine Linux
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.rn rn To view the CPU temperature, you need to first install the "lm_sensors" package by running the following command: rn rn r
How to restart systemd without rebooting Linux when critical libraries installed
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. n n First, check the status of systemd-journald and systemd-u
How to install vnstat on Alpine Linux
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.rn rn To install vnStat, you need to run the following command: rn rn rn rn apk add vnstatrn rn rn rn To start the vnStat daemon a
How to install curl on Alpine Linux
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.rn rn To install curl, you need to run the following command: rn rn rn rn apk add curlrn rn rn rn To
How to send emails with Postfix and Amazon AWS SES on RHEL/CentOS 8
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:rn rn I
How to enable automatic updates for RHEL/CentOS 8
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 fol
How to install Redis server on Ubuntu Linux
Redis is an open-source, in-memory key-value data store. You can install Redis on Ubuntu Linux by following these steps: n n Update the package lists and upgrade the system using the following command: n n n n sudo apt - get update nsudo apt - get upgrade n n n n Install the Redis server package by
How to repeat a character ‘n’ times in Bash
n Bash, you can repeat a character 'n' times using the printf command. The syntax for repeating a character 'n' times is as follows:rn rn rn printf "%*s" n characterrn rn rnWhere:rn rn n is the number of times you want to repeat the character. rn character is the character you want to repeat. It can
How to set up ZFS ARC size on FreeBSD
The Adaptive Replacement Cache (ARC) is a component of the ZFS file system that stores frequently accessed data in memory to improve performance. On FreeBSD, the ARC size can be set using the "kern.vm.zfs.arc_max" sysctl. You can check the current ARC size by running the following command:rn rn r
How To Update Samsung SSD Firmware on Linux
Updating the firmware on a Samsung SSD drive on Linux can be done using the "samsung magician" software, which is a command line tool provided by Samsung to manage and maintain their SSD drives. To update the firmware on a Samsung SSD drive, you will need to follow these steps:rn rn Download the lat
How to use df command in Linux / Unix {with examples}
The "df" command in Linux and Unix is used to display the amount of disk space used and available on the file system. The command can be used with various options to display the information in different formats. Some examples of how to use the "df" command are:rn rn To display information about all
How to upgrade ZFS storage pools version on FreeBSD
To upgrade a ZFS storage pool version on FreeBSD, you can use the "zpool upgrade" command. The command will upgrade the specified pool to the most recent version supported by the system. For example:rn rn rn zpool upgrade poolnamern rn rnIt is recommended to backup your data before upgrading. And al
How to install lftp on FreeBSD using the CLI
To install lftp on a FreeBSD system using the command line interface (CLI), you can use the pkg package manager.rn rn First, update the package index by running the following command: rn rn rn rn sudo pkg update rn rn rn rn To install lftp , you can use the install command. This command will downloa
How to find and replace ALL IP addresses with a new one
There are several ways to find and replace all IP addresses with a new one in a Linux system. One way is to use the sed command, which is a powerful text processing tool.rn rn First, you will need to find all of the IP addresses in the files you want to modify. You can use the grep command to search
How to find the number of RAM Slots in Linux
There are several ways to find the number of RAM slots in a Linux system. One of the most common methods is to use the dmidecode command, which retrieves hardware information from the BIOS.rn rn Open a terminal window and run the following command: rn rn rn rn sudo dmidecode -t memory rn rn rnThis w
How to define multiple when conditions in Ansible
In Ansible, the when statement is used to conditionally execute a task based on the outcome of a test. You can use multiple when statements in a task by using the and and or operators to join multiple tests. To use multiple when statements with the and operator, you can use the and keyword follow
How to see what packages updates available on Alpine Linux
Alpine Linux uses the apk package manager to manage software packages. To see what package updates are available, you can use the apk update command to update the package index, and then run the apk version command to check for updates.rn rn Update the package index by running the following command:
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