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Archives for September 2022

How to uninstall steam from Ubuntu

by admin

Steam is a video game digital distribution service and storefront by Valve. It was launched as a software client in September 2003 as a way for Valve to provide automatic updates for their games and expanded to distributing and offering third-party game publishers’ titles in late 2005. You can install steam in ubuntu and enjoy […]

Filed Under: Linux

lsmod: command not found

by admin

lsmod command lists all loaded modules: name, size (in 4 KB units), and, if appropriate, a list of referring modules. The same information is available in /proc/modules if the /proc directory is enabled on the system. The output of lsmod is a series of columns identifying the module name, size, use number, and status. A […]

Filed Under: Linux

lspci: command not found

by admin

lspci command lists all Peripheral Component Interconnect (PCI) devices. This command has many options that are useful for debugging device drivers. If we just run lspci, we get a list of devices and their IDs: 00:00.0 Host bridge: Intel Corporation 440FX – 82441FX PMC [Natoma] (rev 02) 00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA […]

Filed Under: Linux

umount: command not found

by admin

umount is the opposite of mount: it makes a disk partition unavailable. For instance, if you’ve mounted a CD-ROM disc, you can’t eject it until it’s umounted: $ umount /mnt/cdrom Always unmount removable media before ejecting it or you risk damage to its filesystem. To unmount all mounted devices: # umount -a Don’t unmount a […]

Filed Under: Linux

losetup: command not found

by admin

Loopback filesystems are very interesting components of Linux-like systems. We usually create filesystems on devices (for example, disk drive partitions). These storage devices are available as device files such as /dev/device_name. In order to use the storage device filesystem, we mount it at a directory called a mount point . On the other hand, loopback […]

Filed Under: Linux

gpg: command not found

by admin

The GNU Privacy Guard application allows you to encrypt and decrypt information, create public and private encryption keys, and use or verify digital signatures. GPG is based on the use of a pair of keys, one public and one private (or “secret”). Data encrypted with one key can only be decrypted with the other. To […]

Filed Under: Linux

pstree: command not found

by admin

pstree command displays a hierarchical list of processes in a tree format. pstree is very handy for understanding how parent/child process relationships are set up. If the PID is specified, the displayed tree is rooted at that process. Otherwise, it is rooted at the init process, which has PID 1. If a user (a valid […]

Filed Under: Linux

lshw: command not found

by admin

lshw reports memory configuration, firmware versions, mainboard configuration, CPU version and speed, cache configuration, bus speed, hardware paths, attached devices, partitions, and filesystems. Try the lshw (Hardware Lister) command with no options, and store the output in a text file: $ sudo lshw | tee hardware.txt duchess description: Laptop product: Latitude E7240 (05CA) vendor: Dell […]

Filed Under: Linux

ufw Command Examples in Linux

by admin

Many firewall solutions are available for Linux/Unix-based operating systems, such as Raspbian OS in the case of Raspberry Pi. These firewall solutions have IP tables underneath to filter packets coming from different sources and allow only the legitimate ones to enter the system. IP tables are installed in Raspberry Pi by default but are not […]

Filed Under: Linux, Ubuntu

ufw: command not found

by admin

Uncomplicated firewall (UFW) provides easy-to-use interface for people unfamiliar with firewall concepts. It provides a framework for managing netfilter as well as the command-line interface to manipulate the firewall. With its small command set and plain English parameters, UFW makes it quick and easy to understand and set up firewall rules. At the same time, […]

Filed Under: Linux, Ubuntu

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