In Debian and Ubuntu, the “perl: warning: Setting locale failed” message is usually caused by a lack of support for the locale that is specified in the system’s environment variables. This can happen when the locale is not installed on the system or when it is not configured correctly. To fix this issue, you can … Read more

To override the content type with Nginx web server, you can use the add_header directive in the server or location block of your Nginx configuration file. For example, to set the content type to application/json for all .json files, you can add the following in your server block: location ~* \.json$ { add_header Content-Type application/json; … Read more

Google Chrome is not available in the default CentOS 7 package repositories, so you will need to add the Google Chrome repository to your system in order to install it using the yum command. Here are the steps to install Google Chrome on CentOS 7 using yum: Create a file named “google-chrome.repo” in the “/etc/yum.repos.d/” … Read more

To force delete a directory in Linux, you can use the “rm” command with the “-r” (recursive) and “-f” (force) options. For example, to force delete a directory named “mydir”, you would use the following command: rm -rf mydir Please note that this command will delete the directory and all its contents without prompting for … Read more

You can check the Unix version using the command line by running the following command: uname -a This command will display the system’s name, version, and other information about the operating system. Alternatively, you can use the command: lsb_release -a It will show you the release version, codename and other details of the OS.

To check the CPU temperature in OpenSUSE Linux, you can use the ‘sensors’ command. This command can give you information about the temperature of different components of your system, including the CPU. Before you can use the ‘sensors’ command, you will need to make sure that the ‘lm_sensors’ package is installed on your system. To … Read more

You can determine the number of CPUs on a Linux system using the command nproc. This command is part of the GNU Core Utilities and is available on most Linux distributions. You can also use the command lscpu to get detailed information about the CPUs on your system. This command is part of the lscpu … Read more

To check the health of a hard drive on a FreeBSD system using the smartctl command, you can use the following steps: Install the smartmontools package: sudo pkg install smartmontools Identify the hard drive you want to check. You can use the following command to list all hard drives connected to the system: sudo smartctl … Read more

You can use the test command or the [ command with the -d option to check if a directory exists in a Linux or Unix shell. Here are some examples: test -d /path/to/directory or [ -d /path/to/directory ] if [ -d /path/to/directory ]; then echo “Directory exists”; else echo “Directory does not exist”; fi You … Read more

To  install networked HP printer and scanner on Ubuntu Linux Install the HPLIP (HP Linux Imaging and Printing) package: sudo apt-get install hplip Run the HPLIP tool to detect the printer and scanner connected to your network: hp-setup Follow the prompts to select the printer or scanner you want to install and configure it with … Read more