The Advanced Package Tool (APT) is a command-line tool used to interact easily with the dpkg packaging system. APT is the ideal method used for managing software within Debian-based Linux distributions, such as Ubuntu. It manages dependencies effectively, maintains large configuration files, and properly handles upgrades and downgrades to ensure system stability. On its own, […]
Archives for September 2022
zypper: command not found
SUSE, like Red Hat, using RPM for package management. But instead of using yum, they use another tool set with Zypp (also known as libZypp) as backend. Software management can be done with the graphical configuration software YaST or the command-line interface tool Zypper. zypper command line options Important basic parameters are: Command Description zypper […]
dpkg: command not found
The dpkg utility is a low-level system tool to extract, analyze, unpack, install, and remove packages with a .deb extension. The scripts read by dpkg inside each .deb file are important as they give information to the program regarding the packages’ installation, removal, and configuration. The dpkg utility resides at the base of the package […]
rpm: command not found
Red Hat Package Manager, also known as RPM, is a program for installing, uninstalling, and managing software packages in RPM-based Linux distributions. There are various utilities that make use of the rpm utility in the backend, such as yum and dnf, to name two. This is similar in nature to its counterpart, the dpkg utility. […]
dos2unix: command not found
dos2unix command converts files using the DOS extended character set to their ISO standard counterparts. If dosfile and unixfile are the same, the file is overwritten after the conversion is done. dos2unix Command Options Option Description -cmode, –convmodemode Set the conversion mode to mode. Possible values are ASCII, 7bit ISO, and Mac. The default is […]
How to Boot KVM Guest into a Rescue shell
A broad variety of problems can be resolved by the tools provided through the rescue mode environment. Often these problems refer to booting problems but can also be from different types, such as forgetting the root password. Rescue mode can be a lifesaver and understanding it is a very important skill to learn. It was […]
How to uninstall rbenv from Ubuntu
Developers can install Ruby across all the platforms using a tool called Rbenv; I personally use this. Rbenv will let you jump across Ruby versions easily and install and test out new Ruby distributions with the help of Rbenv’s plugin, ruby-build. rbenv works by intercepting Ruby commands using shim executables injected into your PATH. It […]
How to uninstall aria2 from Ubuntu
aria2 is a lightweight multi-protocol & multi-source command-line download utility. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink. aria2 can be manipulated via built-in JSON-RPC and XML-RPC interfaces. You can uninstall or remove an installed aria2 package itself from Ubuntu through the terminal using the below command: $ sudo apt-get remove aria2 Uninstall aria2 including […]
How to uninstall chromium-browser from Ubuntu
Chromium is a FOSS browser that inspired Google Chrome. Chrome is not completely open source, but the main foundational parts are open source and are made available as Google Chromium, shown in figure below, which has most of the functionality of Chrome, but it is missing the Google branding, automatic updates, and is used as […]
How to uninstall fail2ban on Ubuntu
The fail2ban tool monitors your log files and acts as soon as it discovers malicious behavior in the way you told it to. One common use case is blocking malicious IP addresses by establishing firewall rules on the fly using iptables. This is a tool that serves to protect a variety of services including SSH, […]