To open .cbr files on Linux, you can use a variety of comic book reader applications such as: MComix: A user-friendly comic book reader that supports CBR, CBZ, and PDF files. QComicBook: A lightweight comic book reader that supports CBR, CBZ, and PDF files. Comix: A feature-rich comic book reader that supports CBR, CBZ, and … Read more

To change the password in UNIX, you can use the passwd command in a terminal window. To change your own password, simply type passwd and press Enter. You will be prompted to enter your current password, followed by your new password and a confirmation of your new password. For example: $ passwd Changing password for … Read more

To extract a .lzma tar ball in Linux or Unix, you need to first install the lzma utility, which is used to decompress the .lzma file. Once the lzma utility is installed, you can extract the tar ball using the following command: lzma -dc filename.tar.lzma | tar -xf – Here, filename.tar.lzma is the name of … Read more

To install the PostgreSQL interface for Perl (perl-DBD-Pg) on a system running CentOS or Red Hat Enterprise Linux, you can use the yum package manager. First, make sure that the EPEL repository is enabled on your system. You can check if it is enabled by running the following command: yum repolist enabled | grep epel … Read more

To install the Memcached Object Cache plugin for WordPress and speed up your blog, you can follow these steps: Install the Memcached server on your web server if it’s not already installed. You can use the following command to install Memcached on a system running CentOS or Red Hat Enterprise Linux: sudo yum install memcached … Read more

To remove the GDM (GNOME Display Manager) graphical login screen on CentOS or Red Hat Enterprise Linux, you need to uninstall the gdm package using the yum package manager. First, use the following command to check if GDM is installed: yum list installed | grep gdm If the package is installed, you can remove it … Read more

The OpenSSH server can be configured to hide its version number from clients, making it more difficult for attackers to target known vulnerabilities in specific versions of the software. This can be done by editing the OpenSSH server configuration file, usually located at /etc/ssh/sshd_config. To hide the version number, add the following line to the … Read more

You can use the grep command with the -H option to display the file name along with the matching lines. For example, to search for a pattern in multiple files and display the file name, you can run the following command: grep -H ‘pattern’ file1 file2 file3 In this example, pattern is the string you … Read more

To play an audio CD using the Linux command line with mplayer, you can use the following command: mplayer cdda:// This will launch mplayer and start playing the audio CD that is currently inserted in your CD drive. You can control playback using the standard mplayer controls, such as p to pause and q to … Read more

The error message “Missing Dependency: xen-libs” indicates that the package you are trying to install or update depends on another package called xen-libs but it is not installed on your system. To resolve this issue, you need to install the xen-libs package. You can do this by running the following command: sudo yum install xen-libs … Read more