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Questions tagged [ubuntu]

GENERAL UBUNTU SUPPORT IS OFF-TOPIC. Support questions may be asked at https://askubuntu.com/. Ubuntu is a free desktop and server operating system based on Debian GNU/Linux. This tag is for programming questions specific to Ubuntu.

Ubuntu is a free desktop and server operating system based on Debian GNU/Linux.

Note: Questions concerning the use and administration of Ubuntu, running third-party applications, development, or services provided by Ubuntu may be better suited for Ask Ubuntu rather than Stack Overflow.

Philosophy

The goal of the Ubuntu project is to provide a free computer environment, centered on a Linux distribution and complemented by online services. See Ubuntu's mission for full details.

Releases

The core of the Ubuntu distribution contains a -based desktop environment which is tightly integrated to the system, in particular providing a GUI for hardware management and system administration. The supported core also includes other desktop environments such as , although their integration is managed by side projects such as Kubuntu.

Ubuntu includes a small amount of non-free software such as drivers. Ubuntu offers a large amount of packages directly taken from Debian's unstable distribution, in the form of the universe repository.

There is a release of Ubuntu every six months: one in April and one in October. One in four is a long-term support (LTS) release, the latest being (Jammy Jellyfish), released in April 2022. LTS releases get 5 years of full support (with additional support available), while non-LTS releases get 9 months.

Derivatives

Side projects of Ubuntu include:

  • Kubuntu: managing the integration of KDE into Ubuntu.
  • Ubuntu Studio: for multimedia production.
  • Xubuntu: managing the integration of Xfce into Ubuntu.
  • Lubuntu: managing the integration of LXDE into Ubuntu, focusing on speed and energy efficiency.

Documentation

Common tasks

Related

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How to kill a process on a port on ubuntu

I am trying to kill a process in the command line for a specific port in ubuntu. If I run this command I get the port: sudo lsof -t -i:9001 so...now I want to run: sudo kill 'sudo lsof -t -i:9001' I get this error message: ERROR: garbage process…
Tampa
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Cannot connect to the Docker daemon at unix:/var/run/docker.sock. Is the docker daemon running?

I have applied every solution available on internet but still I cannot run Docker. I want to use Scrapy Splash on my server. Here is history of commands I ran. docker run -p 8050:8050 scrapinghub/splash sudo docker run -p 8050:8050…
Umair Ayub
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ImageMagick security policy 'PDF' blocking conversion

The Imagemagick security policy seems to be not allowing me perform this conversion from pdf to png. Converting other extensions seem to be working, just not from pdf. I haven't changed any of the imagemagick settings since I installed it... I am…
T. Zack Crawford
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Docker error : no space left on device

I installed docker on a Debian 7 machine in the following way $ echo deb http://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list $ sudo apt-get update $ curl -sSL https://get.docker.com/ubuntu/ | sudo sh After that when I…
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Docker - Ubuntu - bash: ping: command not found

I've got a Docker container running Ubuntu which I did as follows: docker run -it ubuntu /bin/bash however it doesn't seem to have ping. E.g. bash: ping: command not found Do I need to install that? Seems a pretty basic command to be missing. I…
Snowcrash
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How to install Boost on Ubuntu

I'm on Ubuntu, and I want to install Boost. I tried with sudo apt-get install boost But there was no such package. What is the best way to install Boost on Ubuntu?
k53sc
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Delete all local git branches

I follow a development process where I create a new local branch for every new feature or story card. When finished I merge the branch into master and then push. What tends to happen over time due to a combination of laziness or forgetfulness, is…
Louth
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How to permanently add a private key with ssh-add on Ubuntu?

I have a private key protected with a password to access a server via SSH. I have 2 linux (ubuntu 10.04) machines and the behavior of ssh-add command is different in both of them. In one machine, once I use "ssh-add .ssh/identity" and entered my…
duduklein
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How to install the JDK on Ubuntu Linux

Note: This is an old question and the answers reflect the world as it was then. Modern Ubuntu distributions have OpenJDK available which can be installed with sudo apt install default-jdk I am trying to install the Java Development Kit (JDK) on…
user2057084
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Where does PostgreSQL store configuration/conf files?

I have recently installed PostgreSQL on Ubuntu with the EnterpriseDB package. I can connect to the database locally, but I can't configure it because I can't find config files. I searched through entire hard drive and found only samples like…
Timur Sadykov
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Nginx no-www to www and www to no-www

I am using nginx on Rackspace cloud following a tutorial and having searched the net and so far can't get this sorted. I want www.mysite.example to go to mysite.example as normal in .htaccess for SEO and other reasons. My…
TheBlackBenzKid
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`require': no such file to load -- mkmf (LoadError)

I was trying to install rails on Ubuntu Natty Narwhal 11.04, using ruby1.9.1. I installed ruby using apt-get install ruby1.9.1-full which contains the dev package. I googled the error and all have suggested I install the 1.9.1-dev which I already…
Omar
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Cannot install packages using node package manager in Ubuntu

NodeJS interpreter name(node) on Ubuntu has been renamed to nodejs because of a name conflict with another package. Here's what the readme. Debian says: The upstream name for the Node.js interpreter command is "node". In Debian the interpreter…
Sayem
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Lost httpd.conf file located apache

How can I find where my httpd.conf file is located? I am running an Ubuntu Linux server from the Amazon Web Services EC2 (Elastic Compute Cloud) and I can't find my Apache config.
Shalin Shah
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How can I stop redis-server?

I apparently have a redis-server instance running because when I try to start a new server by entering redis-server, I'm greeted with the following: Opening port: bind: Address already in use I can't figure out how to stop this server and start a…
Qcom
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