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How to install Nvidia driver on CentOS 7 Linux
Installing the Nvidia driver on CentOS 7 Linux can be done by following these steps:rn rn Ensure that the kernel-devel and gcc packages are installed: rn rn rn rn sudo yum install kernel-devel gccrn rn rn rn Blacklist the nouveau driver by creating a file called /etc/modprobe.d/blacklist.conf with t
How to hide files and directories in Linux
In Linux, files and directories can be hidden by adding a dot (.) at the beginning of the name. When a dot is added to the beginning of a file or directory name, it is treated as a hidden file or directory and is not visible in the default directory listing. n n To hide a file in Linux, simply renam
How to check running process in Ubuntu Linux using command line
There are several ways to check running processes in Ubuntu Linux using the command line. Here are a few common methods:rn rn ps command: The ps command is used to display information about the current running processes. You can use the ps aux command to display all processes running on the system,
How to view Linux kernel parameters for currently booted system
There are several ways to view the Linux kernel parameters for the currently booted system: n n The sysctl command can be used to view and modify kernel parameters at runtime. To view all kernel parameters, use the -a option. n n n n sysctl - a n n n n The /proc/sys/ directory contains files represe
Bash shell find out if a variable has NULL value OR not
In Bash, you can use the -z operator to check if a variable has a NULL value or not. The -z operator returns true if the length of the string stored in the variable is zero. Here is an example:rn rn rn # Declare a variable rnmyvar= "" # Check if the variable has a NULL value rn if ; then rn ech
How to create snapshots with lxc command for LXD
LXD is a container hypervisor that uses the Linux Containers (LXC) technology. It allows you to create and manage containers, similar to virtual machines, but with a smaller footprint and faster performance. To create a snapshot of a container with the lxc command for LXD, you can use the followi
How do I know if my Linux is 32 bit or 64 bit?
There are several ways to determine if a Linux system is 32-bit or 64-bit.rn rn One way is to use the uname command with the -m option, which will print the machine hardware name of the system. If the output is "i686" or "i386", the system is 32-bit. If the output is "x86_64", the system is 64-bit.
How to change root password on macOS Unix using terminal
To change the root password on macOS using the terminal, you can use the dscl command. Here are the steps:rn rn Open the Terminal application on your macOS system. rn Type the following command and press Enter: rn rn rn rn sudo dscl . -passwd /Users/rootrn rn rn rn You will be prompted to enter the
How to install networked HP printer and scanner on Fedora Linux
Installing a networked HP printer and scanner on Fedora Linux can be done using the hplip package, which is a collection of drivers and utilities for HP printers and scanners.rn rn Open a terminal and update the package list by running the command: rn rn rn rn sudo dnf update rn rn rn rn Install the
OpenBSD install MariaDB database server
MariaDB is a popular open-source relational database management system that is compatible with MySQL. To install MariaDB on OpenBSD, you can use the following steps:rn rn First, add the MariaDB package to your OpenBSD system by running the following command: rn rn rn rn pkg_add mariadb-serverrn rn r
How to install Ansible on Fedora 32 for IT and server automation
Ansible is a popular open-source IT automation tool that can be used to manage and configure servers and other infrastructure. To install Ansible on Fedora 32, you can use the dnf package manager.rn rn Open a terminal and update the package list by running the command: rn rn rn rn sudo dnf update rn
How to install FFmpeg on Fedora Linux 33/34 using dnf
FFmpeg is a powerful multimedia framework that can be used to encode, decode, and manipulate audio and video files. To install FFmpeg on Fedora Linux 33/34 using dnf, you can use the following steps:rn rn Add the RPM Fusion repository to your system by running the following command: rn rn rn rn sudo
How to install VirtualBox 6 on Fedora Linux 29
To install VirtualBox 6 on Fedora Linux 29, you can use the Oracle VirtualBox repositories. Here are the steps to install VirtualBox 6 on Fedora 29:rn rn Add the VirtualBox repository to your system by running the following command: rn rn rn rn sudo dnf -y install https: / /download.virtualbox.org/v
How to hide files and directories in Linux
In Linux, you can use the “.” (dot) character at the beginning of a file or directory name to make it hidden. ( https://spellpundit.com/ ) When a file or directory is hidden, it will not be displayed when using the ls command without the -a option (which shows hidden files) and by defaul
How to install Shutter screenshot tool on a Fedora Linux
Shutter is a popular screenshot tool for Linux that allows you to take screenshots, edit them, and upload them to various image hosting sites. To install Shutter on Fedora, you can use the dnf package manager.rn rn Open a terminal and update the package list by running the command: rn rn rn rn sudo
Install Chromium browser in Fedora 29 using dnf command
To install Chromium browser in Fedora 29 using the dnf command, you can follow these steps:rn rn Open a terminal and update the package list by running the command: rn rn rn rn sudo dnf update rn rn rn rn Add the Chromium browser package repository to your system by running the command: rn rn rn rn
How to create snapshots with lxc command for LXD
LXD, the LXC daemon, provides a simple and powerful command-line tool called lxc to manage Linux containers. With lxc , you can create, manage, and delete snapshots of your container. Here are the steps to create a snapshot of a container named "mycontainer" using the lxc command:rn rn First, mak
How to check running process in Ubuntu Linux using command line
There are several commands that can be used to check running processes in Ubuntu Linux using the command line. n n ps command: The ps command can be used to view information about processes that are currently running on the system. The basic syntax is ps . For example, to view all processes running
Bash shell find out if a variable has NULL value OR not
In Bash shell, you can use the -z operator to check if a variable has a NULL value or not. The -z operator returns true if the length of the string stored in the variable is zero, which indicates a NULL value. Here’s an example of how you can use the -z operator to check if a variable has a NU
How to view Linux kernel parameters for currently booted system
There are several ways to view Linux kernel parameters for the currently booted system.rn rn sysctl command: The sysctl command can be used to view and modify kernel parameters. To view all kernel parameters, you can use the following command: rn rn rn rn sysctl - a rn rn rn rn proc filesystem: The
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