There are several commands you can use in Unix to view disk usage information, including: df: The df command displays information about disk space usage on your file system. By default, df shows disk usage information for all mounted file systems. Here’s an example of how to use df: df -h The -h option makes … Read more
In Unix or Linux, you can open TCP and UDP ports using the iptables command. iptables is a command-line firewall utility that allows you to manage the firewall rules on your system. Here’s an example of how to open a TCP port (e.g., port 80) using iptables: sudo iptables -A INPUT -p tcp –dport 80 … Read more
To find symbolic links (symlinks) in Unix or Linux, you can use the find command in combination with the -type option. The -type option allows you to search for specific types of files, including symbolic links. Here’s the basic syntax for finding symlinks: find /path/to/search -type l Where /path/to/search is the directory or file system … Read more
In Ubuntu Linux, the firewall is managed by the UFW (Uncomplicated Firewall) service. To disable the firewall, you can stop the UFW service and then disable it from starting automatically at boot time. Here’s how you can disable the firewall in Ubuntu Linux: Stop the UFW service: sudo systemctl stop ufw Disable the UFW service … Read more
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