### Example: Autostart Firefox
Source: https://help.ubuntu.com/lts/ubuntu-help/startup-applications.html
This example shows the specific command to enter in the Startup Applications utility to make Firefox start automatically when you log in.
```bash
firefox
```
--------------------------------
### Create a Startup Disk
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove.html
Instructions for converting a USB flash drive into a bootable volume for starting up and installing Ubuntu. This is essential for creating installation media.
```APIDOC
Create a startup disk
Description: Convert a USB flash drive into a volume from which you can startup and install Ubuntu.
URL: https://help.ubuntu.com/lts/ubuntu-help/addremove-creator.html.en
```
--------------------------------
### Launching Applications via Activities Overview
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-apps-open.html
This snippet details how to start applications using the Activities overview in Ubuntu. It covers searching by name, using the dash, and accessing all installed applications.
```Ubuntu Help
Move your mouse pointer to the Activities corner at the top left of the screen to show the [Activities](https://help.ubuntu.com/lts/ubuntu-help/shell-introduction.html.en#activities "Activities overview") overview. This is where you can find all of your applications. You can also open the overview by pressing the [`Super`](https://help.ubuntu.com/lts/ubuntu-help/keyboard-key-super.html.en "What is the Super key?") key.
There are several ways of opening an application once you’re in the Activities overview:
* Start typing the name of an application — searching begins instantly. (If this doesn’t happen, click the search bar at the top of the screen and start typing.) If you don’t know the exact name of an application, try to type an related term. Click the application’s icon to start it.
* Some applications have icons in the dash, the horizontal strip of icons at the bottom of the Activities overview. Click one of these to start the corresponding application.
* Click the grid button (which has nine dots) in the dash. You will see the first page of all installed applications. To see more applications, press the dots at the bottom, above the dash, to view other applications. Press on the application to start it.
```
--------------------------------
### Install Software with Synaptic
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove-install-synaptic.html
Provides a step-by-step guide on how to install software using the Synaptic Package Manager. It involves searching for applications, marking them for installation, and applying the changes.
```text
1. Open Synaptic via the Activities search bar.
2. Click Search to search for an application, or click Sections and look through the categories.
3. Right-click the application and select Mark for Installation.
4. If prompted, click Mark to confirm additional changes.
5. Select any other desired applications.
6. Click Apply, then Apply again to download and install.
```
--------------------------------
### Create Startup Disk
Source: https://help.ubuntu.com/lts/ubuntu-help/disk.html
Instructions for converting a USB flash drive into a bootable volume for starting and installing Ubuntu.
```Ubuntu Help
Create a startup disk — Convert a USB flash drive into a volume from which you can startup and install Ubuntu.
https://help.ubuntu.com/lts/ubuntu-help/addremove-creator.html.en
```
--------------------------------
### Install Application using App Center
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove-install.html
Steps to install an application using Ubuntu's App Center. This involves launching the App Center, searching for or selecting an application, clicking 'Install', and authenticating with your password.
```Ubuntu Help
1. Click the App Center icon in the Dock, or search for Software in the Activities search bar.
2. When App Center launches, search for an application, or select a category and find an application from the list.
3. Select the application that you want to install and click Install.
4. You will be asked to authenticate by entering your password. Once you have done that the installation will begin.
```
--------------------------------
### GNOME Desktop Overview and Customization
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-overview.html
Details various aspects of the GNOME desktop environment on Ubuntu, including visual overviews, logging out, starting applications, GNOME Classic, calendar appointments, notifications, pinning favorite applications, switching windows, the lock screen, keyboard shortcuts, status icons, and window/workspace management.
```APIDOC
GNOME Desktop Features:
About GNOME on Ubuntu:
Description: Modifications to the GNOME Desktop in Ubuntu.
Visual Overview:
Description: Visual guide to the desktop, top bar, and Activities overview.
Log Out, Power Off, Switch Users:
Description: Procedures for exiting user sessions.
Start Applications:
Description: How to launch applications from the Activities overview.
GNOME Classic:
Description: Option for a more traditional desktop experience.
Customize Desktop:
Calendar Appointments:
Description: Displaying appointments in the top bar calendar.
Notifications:
Description: How notifications appear and are managed in the notification list.
Pin Favorite Apps:
Description: Adding or removing application icons from the dash.
Applications and Windows:
Startup Applications:
Description: Configuring applications to launch on login.
Switch Between Windows:
Shortcut: `Super`+`Tab`
Description: Navigating between open windows.
Lock Screen:
Description: Information about the lock screen's appearance and functionality.
Useful Keyboard Shortcuts:
Description: Navigating the desktop using the keyboard.
Top Bar Icons:
Description: Explains the meaning of icons in the top bar.
Windows and Workspaces:
Description: Managing and organizing windows and workspaces.
```
--------------------------------
### Install Software using Synaptic
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove-install.html
Instructions for installing software that does not have a graphical user interface (GUI) using Synaptic Package Manager. Synaptic is presented as a more advanced alternative to App Center and does not list snap packages.
```Ubuntu Help
To install software that does not have a GUI, you can use Synaptic. Note that Synaptic does not list snaps.
```
--------------------------------
### Add Third-Party Repository Example
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove-sources.html
Example of an APT line for a third-party software repository. This line specifies the repository URL and the distribution components to be included.
```bash
deb http://archive.ubuntu.com/ubuntu/ noble main
```
--------------------------------
### Language Selection for Ubuntu Documentation
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove-install.html
Explains how to change the displayed language of Ubuntu documentation pages by appending a language suffix to the URL. It provides examples for English and for using the browser's preferred language.
```Ubuntu Help
You can choose the displayed language by adding a language suffix to the web address so it ends with e.g. .html.en or .html.de.
If the web address has no language suffix, the preferred language specified in your web browser's settings is used.
```
--------------------------------
### Install Sushi
Source: https://help.ubuntu.com/lts/ubuntu-help/files-preview.html
Installs the Sushi application, which provides quick file preview functionality in Ubuntu. This uses the apt package manager.
```ubuntu
apt:gnome-sushi
```
--------------------------------
### Install Languages in Ubuntu
Source: https://help.ubuntu.com/lts/ubuntu-help/prefs-language-install.html
Steps to install new languages on Ubuntu via the graphical interface. This involves navigating through the Activities overview to Region & Language settings and then using the Language Support tool.
```bash
1. Open the Activities overview and start typing Region & Language.
2. Click on Region & Language to open the panel.
3. Click the Manage Installed Languages button to open Language Support.
4. Click Install / Remove Languages....
5. Check the languages you want to install, and uncheck those currently installed languages you want to remove.
6. Click Apply Changes.
7. Enter your password when prompted for administrative privileges.
```
--------------------------------
### Launching Applications in Workspaces
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-apps-open.html
This snippet explains how to launch applications in separate workspaces by dragging icons from the dash.
```Ubuntu Help
* You can launch an application in a separate [workspace](https://help.ubuntu.com/lts/ubuntu-help/shell-workspaces.html.en "What is a workspace, and how will it help me?") by dragging its icon from the dash, and dropping it onto one of the workspaces. The application will open in the chosen workspace.
You can launch an application in a new workspace by dragging its icon to an empty workspace, or to the small gap between two workspaces.
```
--------------------------------
### Connect to a Bluetooth Device
Source: https://help.ubuntu.com/lts/ubuntu-help/bluetooth.html
Guide on pairing Bluetooth devices with your Ubuntu computer.
```APIDOC
Connect your computer to a Bluetooth device:
Pair Bluetooth devices.
```
--------------------------------
### Restrict Application Installation in Ubuntu
Source: https://help.ubuntu.com/lts/ubuntu-help/parental-controls.html
This guide explains how to prevent a user from installing new applications on Ubuntu using the Parental Controls feature. It involves accessing the Parental Controls settings for the user, unlocking the dialog, and enabling the 'Restrict Application Installation' option. This functionality is available if Parental Controls is installed and enabled.
```APIDOC
System Settings:
Navigate to Settings -> System -> Users.
Select the target user.
Go to Parental Controls.
Unlock the dialog by entering the administrator password.
Enable 'Restrict Application Installation' toggle.
```
--------------------------------
### Install Working Device Drivers for Wireless Adapter
Source: https://help.ubuntu.com/lts/ubuntu-help/net-wireless-troubleshooting-device-drivers.html
This section guides users on how to ensure their wireless adapter has working device drivers installed. It covers checking distribution support lists, finding restricted drivers, and using NDISwrapper for Windows drivers.
```en
Check to see if your wireless adapter is on a list of supported devices.
Most Linux distributions keep a list of wireless devices that they have support for. Sometimes, these lists provide extra information on how to get the drivers for certain adapters working properly. Go to the list for your distribution (for example, [Ubuntu](https://help.ubuntu.com/community/WifiDocs/WirelessCardsSupported), [Arch](https://wiki.archlinux.org/index.php/Wireless_network_configuration), [Fedora](https://wireless.wiki.kernel.org/en/users/Drivers) or [openSUSE](http://en.opensuse.org/HCL:Network_(Wireless))) and see if your make and model of wireless adapter is listed. You may be able to use some of the information there to get your wireless drivers working.
Look for restricted (binary) drivers.
Many Linux distributions only come with device drivers which are free and open source. This is because they cannot distribute drivers which are proprietary, or closed-source. If the correct driver for your wireless adapter is only available in a non-free, or “binary-only” version, it may not be installed by default. If this is the case, look on the wireless adapter manufacturer’s website to see if they have any Linux drivers.
Some Linux distributions have a tool that can download restricted drivers for you. If your distribution has one of these, use it to see if it can find any wireless drivers for you.
Use the Windows drivers for your adapter.
In general, you cannot use a device driver designed for one operating system (like Windows) on another operating system (like Linux). This is because they have different ways of handling devices. For wireless adapters, however, you can install a compatibility layer called NDISwrapper which lets you use some Windows wireless drivers on Linux. This is useful because wireless adapters almost always have Windows drivers available for them, whereas Linux drivers are sometimes not available. You can learn more about how to use NDISwrapper [here](https://sourceforge.net/p/ndiswrapper/ndiswrapper/Main_Page/). Note that not all wireless drivers can be used through NDISwrapper.
```
--------------------------------
### Start Orca using Mouse and Keyboard
Source: https://help.ubuntu.com/lts/ubuntu-help/a11y-screen-reader.html
Provides a step-by-step guide to launch Orca through the Ubuntu graphical interface, involving the Activities overview and Accessibility settings.
```bash
1. Open the Activities overview and start typing Accessibility.
2. Click Accessibility to open the panel.
3. Select the Seeing section to open it.
4. Switch the Screen Reader switch to on.
```
--------------------------------
### Ubuntu Quick Settings Overview
Source: https://help.ubuntu.com/lts/ubuntu-help/quick-settings.html
Provides an overview of the Quick Settings buttons in the Ubuntu system menu for managing services and devices.
```APIDOC
Quick Settings:
- Access: System menu
- Functionality: Quickly switch services on/off, choose Bluetooth devices, select Wi-Fi networks.
Sections:
- Wi-Fi: Toggle Wi-Fi, view connected network, select new networks, access Wi-Fi settings.
- Wired: Toggle wired networking, view connection info, access Network settings.
- Bluetooth: Toggle Bluetooth, view connected devices, access Bluetooth settings.
- Power Mode: Switch between power profiles (Power Save, etc.), access Power settings.
- Toggles: Control Night Light, Dark Style, Airplane Mode, Keyboard backlight.
- Background Apps: View and manage running background applications, access App settings.
```
--------------------------------
### Language Selection Example
Source: https://help.ubuntu.com/lts/ubuntu-help/color-gettingprofiles.html
Demonstrates how to change the displayed language of a web page by appending a language suffix to the URL. It also shows how to revert to the browser's preferred language.
```APIDOC
URL Modification:
Append language suffix (e.g., .html.en, .html.de) to change language.
If no suffix, browser's preferred language is used.
Example Links:
[Change to English Language](https://help.ubuntu.com/lts/ubuntu-help/color-gettingprofiles.html.en "English page version")
[Change to Browser's Preferred Language](https://help.ubuntu.com/lts/ubuntu-help/color-gettingprofiles.html.en "Language selected by browser")
```
--------------------------------
### Ubuntu Documentation Sections
Source: https://help.ubuntu.com/lts/ubuntu-help/index
Provides links to key sections of the Ubuntu documentation, covering GNOME desktop, system operations, networking, sound, files, software management, user settings, hardware, accessibility, and tips.
```APIDOC
GNOME on Ubuntu:
URL: https://help.ubuntu.com/lts/ubuntu-help/gnome-on-ubuntu.html.en
Description: Notable modifications to the GNOME Desktop in Ubuntu.
Visual overview of GNOME:
URL: https://help.ubuntu.com/lts/ubuntu-help/shell-introduction.html.en
Description: Visual overview of your desktop, top bar, and Activities overview.
Log out, power off or switch users:
URL: https://help.ubuntu.com/lts/ubuntu-help/shell-exit.html.en
Description: How to leave your user account.
Start applications:
URL: https://help.ubuntu.com/lts/ubuntu-help/shell-apps-open.html.en
Description: Launch apps from the Activities overview.
Your desktop:
URL: https://help.ubuntu.com/lts/ubuntu-help/shell-overview.html.en
Description: Work with apps, windows, and workspaces.
Networking, web & email:
URL: https://help.ubuntu.com/lts/ubuntu-help/net.html.en
Description: Connect to networks, use VPN, create hotspots.
Sound and media:
URL: https://help.ubuntu.com/lts/ubuntu-help/media.html.en
Description: Manage sound devices, media files, and external devices.
Files, folders & search:
URL: https://help.ubuntu.com/lts/ubuntu-help/files.html.en
Description: Find and manage files.
Install & remove software:
URL: https://help.ubuntu.com/lts/ubuntu-help/addremove.html.en
Description: Add/remove applications and manage software repositories.
User & system settings:
URL: https://help.ubuntu.com/lts/ubuntu-help/prefs.html.en
Description: Configure hardware and privacy settings.
Hardware & drivers:
URL: https://help.ubuntu.com/lts/ubuntu-help/hardware.html.en
Description: Configure hardware and diagnose problems.
Accessibility:
URL: https://help.ubuntu.com/lts/ubuntu-help/a11y.html.en
Description: Use assistive technologies.
Tips & tricks:
URL: https://help.ubuntu.com/lts/ubuntu-help/tips.html.en
Description: Get the most out of GNOME.
Get more help:
URL: https://help.ubuntu.com/lts/ubuntu-help/more-help.html.en
Description: Tips on using the guide and community help.
```
--------------------------------
### Quickly Running a Command (Alt+F2)
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-apps-open.html
This snippet demonstrates how to quickly launch an application by pressing Alt+F2, entering the command name, and pressing Enter. It also mentions accessing previously run commands.
```Ubuntu Help
## Quickly running a command
Another way of launching an application is to press `Alt`+`F2`, enter its command name, and then press the `Enter` key.
For example, to launch Rhythmbox, press `Alt`+`F2` and type ‘rhythmbox’ (without the single-quotes). The name of the app is the command to launch the program.
Use the arrow keys to quickly access previously run commands.
```
--------------------------------
### Display Hidden Files
Source: https://help.ubuntu.com/lts/ubuntu-help/files-lost.html
Files in Ubuntu that start with a dot (.) or end with a tilde (~) are hidden by default in the file manager. This guide explains how to enable the display of these hidden files to locate them. This is useful if a file was accidentally renamed to be hidden.
```APIDOC
Show Hidden Files:
- Purpose: Display files that are normally hidden.
- Trigger: Enable the 'Show Hidden Files' option in the file manager.
- Condition: Files starting with '.' or ending with '~' become visible.
- Related: Files, files-hidden.html.en
```
--------------------------------
### Restrict Web Browsers in Ubuntu
Source: https://help.ubuntu.com/lts/ubuntu-help/parental-controls.html
This guide explains how to disable browser access for a specific user using the Parental Controls application in Ubuntu. It involves navigating through the System Settings and enabling the 'Restrict Web Browsers' option. This feature is dependent on Parental Controls being installed and enabled.
```APIDOC
System Settings:
Navigate to Settings -> System -> Users.
Select the target user.
Go to Parental Controls.
Unlock the dialog by entering the administrator password.
Enable 'Restrict Web Browsers' toggle.
```
--------------------------------
### Managing Background Applications
Source: https://help.ubuntu.com/lts/ubuntu-help/quick-settings.html
Details on viewing and managing background applications shown in the Ubuntu system menu.
```APIDOC
Background Applications Management:
- Display: The number of background applications is shown at the bottom of the system menu.
- Viewing List: Click to display a list of running background applications.
- Interaction: Selecting an application from the list opens its window and removes it from the 'Background Apps' list.
- App Settings: Select 'App Settings' to open the Apps settings panel.
```
--------------------------------
### Add Startup Application Command
Source: https://help.ubuntu.com/lts/ubuntu-help/startup-applications.html
This snippet demonstrates how to add an application to start automatically at login using the Startup Applications utility. It shows the command to run and the optional fields for name and comment.
```bash
gnome-session-properties
```
--------------------------------
### Language Selection
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove-creator.html
Demonstrates how to change the displayed language of a web page by appending a language suffix to the URL. If no suffix is present, the browser's preferred language is used.
```html
Change to English Language
Change to Browser's Preferred Language
```
--------------------------------
### Install DVD Playback Codecs
Source: https://help.ubuntu.com/lts/ubuntu-help/video-dvd.html
To play DVDs, you need to install the appropriate codecs. If your media player doesn't prompt for installation, manual installation might be required. Consult your Linux distribution's support forums for specific instructions.
```APIDOC
Command: sudo apt update && sudo apt install ubuntu-restricted-extras
Description: Installs a package that includes multimedia codecs and other software that may be restricted by copyright or legal considerations. This is often necessary for playing DVDs and other media formats.
Note: This command may require accepting a license agreement during installation.
```
--------------------------------
### Ubuntu Documentation Navigation and Contribution
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-overview.html
Provides links to key Ubuntu documentation resources, including the official documentation, community help wiki, and contribution guidelines. It also outlines how to report errors in the documentation.
```APIDOC
Ubuntu Documentation Resources:
Official Documentation:
URL: https://help.ubuntu.com/
Description: Primary source for official Ubuntu documentation.
Community Help Wiki:
URL: https://help.ubuntu.com/community/CommunityHelpWiki
Description: Community-driven help and troubleshooting resources.
Contribute to Documentation:
URL: https://ubuntu.com/community/contribute
Description: Information on how to contribute to Ubuntu documentation.
Report Documentation Errors:
Action: File a bug report.
Target: https://bugs.launchpad.net/ubuntu/+source/ubuntu-docs
Description: Process for reporting errors or suggesting improvements in the documentation.
```
--------------------------------
### Install Languages
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove.html
Guidance on installing additional translations and related language support packages for Ubuntu. This ensures full language compatibility for users.
```APIDOC
Install languages
Description: Install more translations and related language support packages.
URL: https://help.ubuntu.com/lts/ubuntu-help/prefs-language-install.html.en
```
--------------------------------
### Hiding and Unhiding Files in Ubuntu Files
Source: https://help.ubuntu.com/lts/ubuntu-help/files-hidden.html
This section details the process of hiding and unhiding files and folders within the Ubuntu Files application. Hiding is achieved by renaming files or folders to start with a dot (.), and unhiding involves removing this leading dot. The guide also explains how to toggle the visibility of all hidden files using a keyboard shortcut or menu option.
```APIDOC
Hide File/Folder:
Action: Rename the file or folder to begin with a '.' character.
Example: To hide 'example.txt', rename it to '.example.txt'.
Example: To hide a folder named 'my_folder', rename it to '.my_folder'.
Show/Hide All Hidden Files:
Method 1 (Menu):
1. Navigate to the desired folder.
2. Click the menu button in the sidebar.
3. Select 'Show Hidden Files' to display them, or deselect it to hide them again.
Method 2 (Keyboard Shortcut):
1. Navigate to the desired folder.
2. Press `Ctrl` + `H` to toggle the visibility of hidden files.
Unhide File/Folder:
1. Navigate to the folder containing the hidden file.
2. Ensure hidden files are visible (using Method 1 or 2 above).
3. Rename the hidden file (e.g., '.example.txt') to remove the leading dot (e.g., 'example.txt').
Note on Backup Files:
- Files ending with a '~' are backup files and are also hidden by default.
Persistent Hidden File Visibility:
- By default, hidden files are only visible until the file manager is closed.
- To change this setting permanently, refer to 'Views preferences in Files'.
```
--------------------------------
### Switching Windows from Activities Overview
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-windows-switching.html
This snippet describes how to switch to a window directly from the Activities overview in Ubuntu. It also explains how to view windows across different workspaces.
```en
From the Activities overview, click on a window to switch to it.
If multiple workspaces are open, click on each workspace to view its open windows.
```
--------------------------------
### Create Startup Disk
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove-creator.html
Steps to create a startup disk using the Startup Disk Creator application. This process involves selecting an Ubuntu ISO image and a USB flash drive, then initiating the creation process.
```bash
1. Open Startup Disk Creator via the Activities search bar.
2. Select the correct ISO image.
3. Select the correct USB flash drive.
4. Click Make Startup Disk.
5. Click Yes to confirm.
6. When the "Installation Complete" window opens click Quit.
```
--------------------------------
### Install Additional Applications
Source: https://help.ubuntu.com/lts/ubuntu-help/addremove.html
Instructions on using the App Center to install new applications to enhance Ubuntu's functionality. This is the primary method for users to add software.
```APIDOC
Install additional applications
Description: Use App Center to install additional applications and make Ubuntu more useful.
URL: https://help.ubuntu.com/lts/ubuntu-help/addremove-install.html.en
```
--------------------------------
### Ubuntu Documentation Topics
Source: https://help.ubuntu.com/lts/ubuntu-help/index.html
A collection of links to various sections of the Ubuntu documentation, covering GNOME desktop features, system operations, networking, software management, hardware configuration, accessibility, and tips.
```APIDOC
About GNOME on Ubuntu: https://help.ubuntu.com/lts/ubuntu-help/gnome-on-ubuntu.html.en
Visual overview of GNOME: https://help.ubuntu.com/lts/ubuntu-help/shell-introduction.html.en
Log out, power off or switch users: https://help.ubuntu.com/lts/ubuntu-help/shell-exit.html.en
Start applications: https://help.ubuntu.com/lts/ubuntu-help/shell-apps-open.html.en
Your desktop: https://help.ubuntu.com/lts/ubuntu-help/shell-overview.html.en
Networking, web & email: https://help.ubuntu.com/lts/ubuntu-help/net.html.en
Sound and media: https://help.ubuntu.com/lts/ubuntu-help/media.html.en
Files, folders & search: https://help.ubuntu.com/lts/ubuntu-help/files.html.en
Install & remove software: https://help.ubuntu.com/lts/ubuntu-help/addremove.html.en
User & system settings: https://help.ubuntu.com/lts/ubuntu-help/prefs.html.en
Hardware & drivers: https://help.ubuntu.com/lts/ubuntu-help/hardware.html.en
Accessibility: https://help.ubuntu.com/lts/ubuntu-help/a11y.html.en
Tips & tricks: https://help.ubuntu.com/lts/ubuntu-help/tips.html.en
Get more help: https://help.ubuntu.com/lts/ubuntu-help/more-help.html.en
```
--------------------------------
### Install Rygel Package
Source: https://help.ubuntu.com/lts/ubuntu-help/sharing-media.html
Command to install the Rygel package, which is required for Media Sharing functionality in Ubuntu.
```bash
apt:rygel
```
--------------------------------
### Connect Additional Monitors
Source: https://help.ubuntu.com/lts/ubuntu-help/prefs-display.html
Instructions on how to set up and configure an additional monitor connected to your Ubuntu computer.
```APIDOC
Display Settings:
ConnectMonitor(monitor_id: str, arrangement: str = 'extend')
Description: Sets up and configures an additional monitor.
Parameters:
monitor_id: Identifier for the connected monitor.
arrangement: How the displays are arranged ('extend', 'mirror').
Usage:
Managed within 'Settings' -> 'Displays'.
```
--------------------------------
### Install numlockx Package
Source: https://help.ubuntu.com/lts/ubuntu-help/numeric-keypad.html
Installs the numlockx package, which is used to control the numeric keypad state on Ubuntu systems.
```bash
sudo apt install numlockx
```
--------------------------------
### Ubuntu Settings Documentation Links
Source: https://help.ubuntu.com/lts/ubuntu-help/prefs.html
Provides direct links to specific configuration pages within the Ubuntu Desktop Guide for version 24.04 LTS. Each link details the purpose of the setting.
```APIDOC
About:
Description: View information about your system.
URL: https://help.ubuntu.com/lts/ubuntu-help/about.html.en
Color management:
Description: Calibrate color profiles on monitors, printers, and other devices.
URL: https://help.ubuntu.com/lts/ubuntu-help/color.html.en
Date & time:
Description: Use clocks and timezones, and keep track of appointments.
URL: https://help.ubuntu.com/lts/ubuntu-help/clock.html.en
Display & screen:
Description: Set your background, configure monitors, and manage color temperatures.
URL: https://help.ubuntu.com/lts/ubuntu-help/prefs-display.html.en
Keyboard:
Description: Select international keyboard layouts and use keyboard accessibility features.
URL: https://help.ubuntu.com/lts/ubuntu-help/keyboard.html.en
Mouse, Touchpad & Touchscreen:
Description: Adjust the behavior of pointing devices to meet personal requirements.
URL: https://help.ubuntu.com/lts/ubuntu-help/mouse.html.en
Online accounts:
Description: Connect to your accounts with various online services.
URL: https://help.ubuntu.com/lts/ubuntu-help/accounts.html.en
Power & battery:
Description: View your battery status and change power saving settings.
URL: https://help.ubuntu.com/lts/ubuntu-help/power.html.en
Privacy Settings:
Description: Lock your screen, remove temporary files, and control access to devices like cameras and microphones.
URL: https://help.ubuntu.com/lts/ubuntu-help/privacy.html.en
Quick Settings:
Description: Quickly toggle different settings and choose devices.
URL: https://help.ubuntu.com/lts/ubuntu-help/quick-settings.html.en
Region & Language:
Description: Set your preferred languages, regions, formats, and keyboard layouts.
URL: https://help.ubuntu.com/lts/ubuntu-help/prefs-language.html.en
Sharing Settings:
Description: Share your screen, or share media and other files over a local network or Bluetooth.
URL: https://help.ubuntu.com/lts/ubuntu-help/prefs-sharing.html.en
Sound:
Description: Adjust the volume for different apps, and configure different speakers and microphones.
URL: https://help.ubuntu.com/lts/ubuntu-help/media.html.en#sound
Startup Applications:
Description: Choose what applications to start when you log in.
URL: https://help.ubuntu.com/lts/ubuntu-help/startup-applications.html.en
User accounts:
Description: Add and remove user accounts. Change passwords. Set administrative privileges.
URL: https://help.ubuntu.com/lts/ubuntu-help/user-accounts.html.en
Wacom Graphics Tablet:
Description: Configure your Wacom graphics tablet, including the tracking mode and which monitor it is mapped to.
URL: https://help.ubuntu.com/lts/ubuntu-help/wacom.html.en
```
--------------------------------
### Example PCI Wireless Adapter Detection
Source: https://help.ubuntu.com/lts/ubuntu-help/net-wireless-troubleshooting-hardware-check.html
This is an example of the expected output when 'lspci' successfully detects a wireless adapter.
```text
Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection
```
--------------------------------
### Switching Windows with Keyboard Shortcuts
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-windows-switching.html
This snippet details the keyboard shortcuts used to access and navigate the Ubuntu window switcher. It explains how to bring up the switcher, cycle through open windows, and select a window.
```en
1. Press `Super`+`Tab` to bring up the window switcher.
2. Release `Super` to select the highlighted window.
3. Hold `Super` and press `Tab` to cycle forward, or `Shift`+`Tab` to cycle backward.
4. Use `→` or `←` to move between application icons, or click with the mouse.
5. Press `↓` to display previews of applications with a single window.
```
--------------------------------
### Install gnome-shell-extensions
Source: https://help.ubuntu.com/lts/ubuntu-help/gnome-classic.html
Installs the necessary package to enable GNOME Classic functionality. This command uses the apt package manager.
```bash
apt:gnome-shell-extensions
```
--------------------------------
### GNOME Dash Functionality
Source: https://help.ubuntu.com/lts/ubuntu-help/shell-introduction.html
Explains how to interact with the dash in the GNOME Activities overview. This includes launching applications, identifying running applications, and managing favorite applications.
```en
Click an icon in the dash to open that application.
A small dot below an icon indicates the application is running.
Drag an application icon onto the dash to make it a favorite.
```
--------------------------------
### Example Wireless Interface Detection
Source: https://help.ubuntu.com/lts/ubuntu-help/net-wireless-troubleshooting-hardware-check.html
This is an example of the expected output when 'lshw -C network' successfully detects a wireless interface.
```text
*-network
description: Wireless interface
product: PRO/Wireless 3945ABG [Golan] Network Connection
vendor: Intel Corporation
```
--------------------------------
### Connecting to a Shared Desktop
Source: https://help.ubuntu.com/lts/ubuntu-help/sharing-desktop.html
Information on how to connect to a shared Ubuntu desktop, including the details provided by the 'How to Connect' section and the use of IP addresses.
```APIDOC
Connecting to Shared Desktop:
Information Provided:
- Device Name
- Remote Desktop Address
Connection Methods:
- Use Device Name and Remote Desktop Address.
- Use the computer's IP address.
Verification:
- 'Screen is being shared' icon appears on successful connection.
```
--------------------------------
### Install GNOME Remote Desktop
Source: https://help.ubuntu.com/lts/ubuntu-help/sharing-desktop.html
Installs the GNOME Remote Desktop package required for remote desktop sharing functionality on Ubuntu.
```bash
apt:gnome-remote-desktop
```
--------------------------------
### Screen Calibration Steps in Ubuntu
Source: https://help.ubuntu.com/lts/ubuntu-help/color-calibrate-screen.html
This snippet outlines the sequential steps required to calibrate a screen using Ubuntu's built-in settings. It details navigating the Activities overview to access Settings, selecting the Color panel, choosing the screen, and starting the calibration process.
```text
1. Make sure your calibration device is connected to your computer.
2. Open the Activities overview and start typing Settings.
3. Click on Settings.
4. Click Color in the sidebar to open the panel.
5. Select your screen.
6. Press Calibrate… to commence the calibration.
```
--------------------------------
### Ubuntu System Information and Settings
Source: https://help.ubuntu.com/lts/ubuntu-help/about.html
Provides links to discover information about system hardware and the operating system, as well as how to change the device name for network and Bluetooth identification.
```APIDOC
About Window:
Access system hardware and OS information.
Change Device Name:
- Purpose: Modify the name used for network and Bluetooth identification.
- Link: https://help.ubuntu.com/lts/ubuntu-help/about-hostname.html.en
Discover System Hardware:
- Purpose: View details about installed hardware.
- Link: https://help.ubuntu.com/lts/ubuntu-help/about-hardware.html.en
Find Operating System Information:
- Purpose: View details about the installed operating system.
- Link: https://help.ubuntu.com/lts/ubuntu-help/about-os.html.en
```
--------------------------------
### Install Orca
Source: https://help.ubuntu.com/lts/ubuntu-help/a11y-screen-reader.html
Installs the Orca screen reader if it's not already present on your system. This is a prerequisite for using the screen reader functionality.
```bash
apt:orca
```
--------------------------------
### Managing Wi-Fi Connections
Source: https://help.ubuntu.com/lts/ubuntu-help/quick-settings.html
Details on how to use the Wi-Fi button in Quick Settings to manage wireless connections.
```APIDOC
Wi-Fi Management:
- Toggle: Press the Wi-Fi button to turn Wi-Fi off or on.
- Current Connection: The button displays the currently connected Wi-Fi network.
- Connecting: Select a network to initiate a connection.
- All Networks: Select 'All Networks' to open the Wi-Fi settings panel for more options.
```
--------------------------------
### Booklet Printing Examples
Source: https://help.ubuntu.com/lts/ubuntu-help/printing-booklet-duplex.html
Examples of page numbering sequences for booklets of different page counts (4, 8, and 20 pages).
```text
4 page booklet: Type 4,1,2,3
8 page booklet: Type 8,1,2,7,6,3,4,5
20 page booklet: Type 20,1,2,19,18,3,4,17,16,5,6,15,14,7,8,13,12,9,10,11
```