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 default in most file managers. … Read more
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. Open a terminal and update the package list by running the command: sudo dnf update Install the Shutter package … Read more
To install Chromium browser in Fedora 29 using the dnf command, you can follow these steps: Open a terminal and update the package list by running the command: sudo dnf update Add the Chromium browser package repository to your system by running the command: sudo dnf config-manager –add-repo=https://repo.fedora.silverblue.org/chrome/chromium-browser.repo Install the Chromium browser package by running … Read more
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: First, make sure the container is in a stopped … Read more
There are several commands that can be used to check running processes in Ubuntu Linux using the command line. 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 [options]. For example, to view all processes running on the system, … Read more
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 … Read more
There are several ways to view Linux kernel parameters for the currently booted system. 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: sysctl -a proc filesystem: The proc filesystem contains a wealth of information about the system and … Read more
To change the root password on macOS using the terminal, you can use the dscl command. The dscl command is used to manage the Directory Service on macOS. Here are the steps to change the root password: Open the Terminal application. Type the following command and press Enter: sudo dscl . -passwd /Users/root You will … Read more
Upgrading Fedora 29 to Fedora 30 involves several steps and it’s recommended to have a backup of your important files before starting the upgrade process. Verify your current version: Before upgrading, you should check the version of Fedora that you are currently running by running the command cat /etc/fedora-release. Update your current version: Before upgrading, … Read more
There are a few ways to determine if your Linux system is running a 32-bit or 64-bit architecture: One way is to use the uname command. This command will display information about the system, including the architecture. You can use the -m option to display the machine hardware name. uname -m If the output of … Read more