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DEBIAN Packages

  • DPKG cheat sheet: http://www.cyberciti.biz/howto/question/linux/dpkg-cheat-sheet.php
  • Syntax Description Example
  • dpkg -i {.deb package} Install the package dpkg -i zip_2.31-3_i386.deb
  • dpkg -i {.deb package} Upgrade package if it is installed else install a fresh copy of package dpkg -i zip_2.31-3_i386.deb
  • dpkg -R {Directory-name} Install all packages recursively from directory dpkg -R /tmp/downloads
  • dpkg -r {package} Remove/Delete an installed package except configuration files dpkg -r zip
  • dpkg -P {package} Remove/Delete everything including configuration files dpkg -P apache-perl
  • dpkg -l List all installed packages, along with package version and short description dpkg -l ; dokg -l | less ; dpkg -l 'apache' ; dpkg -l | grep -i 'sudo'
  • dpkg -l {package} List individual installed packages, along with package version and short description dpkg -l apache-perl
  • dpkg -L {package} Find out files are provided by the installed package i.e. list where files were installed dpkg -L apache-perl ; dpkg -L perl
  • dpkg -c {.Deb package} List files provided (or owned) by the package i.e. List all files inside debian .deb package file, very useful to find where files would be installed dpkg -c dc_1.06-19_i386.deb
  • dpkg -S {/path/to/file} Find what package owns the file i.e. find out what package does file belong dpkg -S /bin/netstat dpkg -S /sbin/ippool
  • dpkg -p {package} Display details about package package group, version, maintainer, Architecture, display depends packages, description etc dpkg -p lsof
  • dpkg -s {package} | grep Status Find out if Debian package is installed or not (status) dpkg -s lsof | grep Status

APT

Apt-Pinning

UBUNTU

PPA

Adding PPA's

  1. Add a PPA using APT in terminal by typing the following command: sudo add-apt-repository ppa:PPA_Name/ppa

Removing PPA's

  1. Remove a PPA using APT in terminal by typing the following command: sudo add-apt-repository --remove ppa:PPA_Name/ppa
  2. Remove a PPA from the source list, else it will get pulled when you update the system.
    • First, find where these PPAs are stored by listing all the PPAs added in your system: sudo ls /etc/apt/sources.list.d.
    • Then remove the PPA using the following command: sudo rm -i /etc/apt/sources.list.d/PPA_Name.list
  3. Remove a PPA by using ppa-purge in terminal - What about the applications installed using PPAs? Will they be removed as a result of removing the PPA? The answer is NO. So, we use PPA purge to remove the PPA and uninstall all the programs installed by the PPA.
    • Install ppa-purge with this command: sudo apt-get install ppa-purge
    • Then use it to purge the PPA: sudo ppa-purge ppa-url {{The URL of the PPA can be found in the Software Sources list.}}

KDE

Dual Desktop Environment - KDE + Gnome

HDD

ISO

ISO - Debian

ISO - Ubuntu

multiboot iso

SUDO

Adding users to sudoers group

$ groups # check if the user is in the sudoers file $ less /etc/passwd # check if the user is in the sudoers file $ sudo visudo # visudo tool can also check the sudoer group $ nano /etc/group # now add the user to the sudoer file with nano.

Devices

delete contents of USB

$ fdisk -l $ dd if=debian.iso of=/dev/sdX # X is replaced by sda

Dual monitor

WiFi

WIFI realtek firmware for Debian

$ dmesg # list devices $ mount # mounts a device (like USB) $ sudo mount /dev/sdb1 /mnt # mount the USB stick. $ ls /mnt # list mounted devices. $ cp /mnt/firmware-realtek_0.43_all.deb /var/tmp # copies the WIFI realtek firmware debian library to the /var temp lib. $ sudo dpkg -i /var/tmp/firmware-realtek_0.43_all.deb # update the firmware from the debian repository.

DNS

GRUB

grub rescue mode

CONFIG

Config-Git

INI-RC-YAML

KERNEL-HDD

Ubuntu Cloud Snappy

REGEX

General

UTILITIES

Backups

Calendar Time Tracker

Arbtt desktop timetracker

OrangeScrum

Editor

Edit PDF

Spreadsheets

  • roo :: An interface to spreadsheets of several sorts.

Terminal Multiplexer

Screen

Tmux

Resources

systemd