Using the GNOME desktop environment

Procedure

1. On the login screen, select a user, then click the gear button in the lower-right corner of the screen.

   Note

   You cannot access this option from the lock screen. The login screen, also called GNOME Display Manager (GDM), appears when you first start RHEL or when you log out of your current session.

   

2. From the drop-down menu that appears, select the option that you prefer.

Procedure

1. Open the system menu, which is accessible from the upper-right screen corner, and click Settings.

   

2. Go to About → Subscription.

3. If you are not using the Red Hat server:

   1. In the Registration Server section, select Custom Address.
   2. Enter the server address in the URL field.
4. In the Registration Type section, select Activation Keys.

5. Under Registration Details:

   • Enter your activation keys in the Activation Keys field.

     Separate your keys by a comma (,).

   • Enter the name or ID of your organization in the Organization field.
6. Click Register.

Procedure

1. Open the system menu, which is accessible from the upper-right screen corner, and click Settings.

   

2. Go to About → Subscription.

   The Registration Details screen is displayed.

3. Click Unregister.

   A warning is displayed about the impact of unregistering the system.

4. Click Unregister.

Procedure

1. Open the Activities Overview screen by using either of the following ways:

   • Click the Red Hat logo in the top panel.
   • Press the Super key, which is usually labeled with the Windows logo, ⌘, or 🔍.

2. Find the application by using either of the following ways:

   • Click the Show Apps icon in the bottom horizontal bar.

     

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   • Type the name of the required application in the search text field.
3. Click the application in the displayed list.

Procedure

1. Open the Apps menu in the top panel.

2. Choose the required application from the available categories, which can include:

   • Favorites
   • Accessories
   • Graphics
   • Internet
   • Office
   • Sound & Video
   • System Tools
   • Utilities

Procedure

1. Open a command prompt by using either of the following ways:

   • Open a terminal.

   • Press the Alt+F2 shortcut to open the Run a Command screen.

     

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2. Type the application command in the command prompt.
3. Confirm the command by pressing Enter.

Procedure

1. Open the Files application.
2. Press the Search button.

3. In the text field, type the file name or a part of the file name that you are searching for.

   

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4. The window now lists all files in your home directory that match the file name.

Procedure

1. Open the Files application.

2. Navigate to the folder where you want to search for a file.

   The search recursively descends into all folders contained in this location.

3. Press the Search button.

4. Optional: Type the file name or a part of the file name that you are searching for in the text field.

   If you do not provide a file name, the search lists all files that match the other criteria, regardless of their file names.

   

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5. Click the Filter search results button next to the text field.

   In this menu, you can select other search criteria.

   

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6. To specify the access or modification time, click Select dates next to the When label. Enter a date or select a time point from the list.

   Below the time list, you can switch between Last modified and Last used.

7. To specify the file type, click Anything next to the What label. Select a file type from the list.

8. To switch between a search based on file content or file names, use the Full Text and File Name buttons.

   Note

   The full-text search only works in indexed locations. You can configure the indexed locations in the Search section of the Settings application.

9. Click the triangle button next to the text field to hide the menu.
10. The window now lists all files in the specified directory that match your search criteria.

Procedure

1. Right-click the bookmark in the side bar.

2. Select Remove from the menu.

   

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Procedure

1. Right-click the bookmark in the side bar.

2. Select Rename.

   

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3. In the Name field, enter the new name for the bookmark.
4. Click Rename.

Procedure

1. In the home directory of each existing user, edit the ~user/.config/gtk-3.0/bookmarks file.

2. In the file, add a Uniform Resource Identifiers (URI) line that identifies the bookmark.

   For example, the following lines add bookmarks to the /usr/share/doc/ directory and to the GNOME FTP network share:

   file:///usr/share/doc/
   ftp://ftp.gnome.org/

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3. Optional: To also add the bookmarks for every newly created user on the system:

   1. Create the /etc/skel/.config/gtk-3.0/bookmarks file.
   2. Enter the bookmark URI lines in the file.

Procedure

1. Open the Settings application from the system menu by clicking on its icon.

   

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2. In Settings, click Region & Language from the left vertical bar.

3. Click Language.

   

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4. Select the required region and language from the menu.

   

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5. Click Select.

6. Click Log Out…​ for changes to take effect.

   

Procedure

1. Open the Settings application.
2. Select Accessibility.

3. Enable the Always Show Accessibility Menu item.

   Enabling the Accessibility menu in Settings

   

Verification

1. Open an application with text content.
2. Check that the screen reader reads the text in the application.

Procedure

1. Open the Files application.

2. Click Other Locations in the side bar.

   The window lists all connected storage volumes and all network shares that are publicly available on your local area network.

   If you can see the volume or network share in this list, mount it by clicking the item.

   If you want to connect to a different network share, use the following steps.

3. Enter the GVFS URI string to the network share in the Enter server address field.
4. Press Connect.
5. If the dialog asks you for login credentials, enter your name and password into the relevant fields.
6. When the mounting process finishes, you can browse the files on the volume or network share.

Procedure

1. Open the Files application.
2. In the side bar, click the Unmount (⏏) icon next to the chosen mount.
3. Wait until the mount disappears from the side bar or a notification about the safe removal appears.

Procedure

1. Create the /usr/share/mime/packages/application-x-newtype.xml file with following content:

   <?xml version="1.0" encoding="UTF-8"?>
   
   <mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
     <mime-type type="application/x-newtype">
       <comment>new mime type</comment>
       <glob pattern="*.xyz"/>
     </mime-type>
   </mime-info>

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   The sample application-x-newtype.xml file here defines a new MIME type application/x-newtype and assigns file names with the .xyz extension to that MIME type.

2. Create a new .desktop file named, for example, myapplication1.desktop in the /usr/share/applications/ with following content:

   [Desktop Entry]
   Type=Application
   MimeType=application/x-newtype
   Name=My Application 1
   Exec=myapplication1 field_code

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   The sample myapplication1.desktop file here associates the application/x-newtype MIME type with an application named My Application 1. It is run by a command myapplication1.

   Based on how myapplication1 gets started, select one relevant field code from Desktop Entry Specification. For example, for an application capable of opening multiple files, use:

   Exec=myapplication1 %F

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3. As a root user, update the MIME database for your changes to take effect.

   # update-mime-database /usr/share/mime

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4. As a root user, update the application database.

   # update-desktop-database /usr/share/applications

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Verification

1. To verify that you have successfully associated *.xyz files with the application/x-newtype MIME type, first create an empty file, for example test.xyz and execute the following commands:

   $ touch test.xyz
   
   $ gvfs-info test.xyz | grep "standard::content-type"
     standard::content-type: application/x-newtype

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2. To verify myapplication1.desktop is correctly set as the default registered application for the application/x-newtype MIME type, execute following command:

   $ gio mime --query application/x-newtype
   Default application for 'application/x-newtype': myapplication1.desktop
   Registered applications:
   	myapplication1.desktop
   Recommended applications:
   	myapplication1.desktop

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Procedure

1. Create the ~/.local/share/mime/packages/application-x-newtype.xml file with following content:

   <?xml version="1.0" encoding="UTF-8"?>
   <mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
     <mime-type type="application/x-newtype">
       <comment>new mime type</comment>
       <glob pattern="*.xyz"/>
     </mime-type>
   </mime-info>

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   The sample application-x-newtype.xml file here defines a new MIME type application/x-newtype and assigns file names with the .xyz extension to that MIME type.

2. Create a new .desktop file named, for example, myapplication1.desktop, and place it in the ~/.local/share/applications/ directory with following content:

   [Desktop Entry]
   Type=Application
   MimeType=application/x-newtype
   Name=My Application 1
   Exec=myapplication1 field_code

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   The sample myapplication1.desktop file above associates the application/x-newtype MIME type with an application named My Application 1. It is run by a command myapplication1.

   Based on how myapplication1 gets started, choose one respective field code from Desktop Entry Specification. For example, for an application capable of opening multiple files, use:

   Exec=myapplication1 %F

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3. Update the MIME database for your changes to take effect:

   $ update-mime-database ~/.local/share/mime

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4. Update the application database:

   $ update-desktop-database ~/.local/share/applications

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Verification

1. To verify that you have successfully associated *.xyz files with the application/x-newtype MIME type, first create an empty file, for example, test.xyz and execute the following commands:

   $ touch test.xyz
   
   $ gvfs-info test.xyz | grep "standard::content-type"
     standard::content-type: application/x-newtype

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2. To verify that myapplication1.desktop is correctly set as the default registered application for the application/x-newtype MIME type, execute following command:

   $ gio mime --query application/x-newtype
   Default application for 'application/x-newtype': myapplication1.desktop
   Registered applications:
   	myapplication1.desktop
   Recommended applications:
   	myapplication1.desktop

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1. /usr/share/applications/
2. /etc/xdg/
3. ~/.local/share/application/

1. mimeapps.list
2. gnome-mimeapps.list

Procedure

1. Consult the /usr/share/applications/mimeapps.list file to determine the MIME types for which you want to change the default registered application. For example, the following sample of the mimeapps.list file specifies the default registered application for the text/html and application/xhtml+xml MIME types:

   [Default Applications]
   text/html=firefox.desktop
   application/xhtml+xml=firefox.desktop

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   This example above specifies default application (Mozilla Firefox) by specifying its corresponding .desktop file (firefox.desktop). You can find .desktop files for other applications in the /usr/share/applications/ directory.

2. Create the /etc/xdg/mimeapps.list file and specify the MIME types and their corresponding default registered applications in this file.

   [Default Applications]
   text/html=myapplication1.desktop
   application/xhtml+xml=myapplication2.desktop

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   This example above sets the default registered application for the text/html MIME type to myapplication1.desktop and application/xhtml+xml MIME type to myapplication2.desktop.

Procedure

1. Consult the /usr/share/applications/mimeapps.list file to determine the MIME types for which you want to change the default registered application. For example, the following sample of the mimeapps.list file specifies the default registered application for the text/html and application/xhtml+xml MIME types:

   [Default Applications]
   text/html=firefox.desktop
   application/xhtml+xml=firefox.desktop

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   This example above specifies default application (Mozilla Firefox) by specifying its corresponding .desktop file (firefox.desktop). You can find .desktop files for other applications in the /usr/share/applications/ directory.

2. Create the ~/.local/share/applications/mimeapps.list file and specify the MIME types and their corresponding default registered applications in this file.

   [Default Applications]
   text/html=myapplication1.desktop
   application/xhtml+xml=myapplication2.desktop

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   This example above sets the default registered application for the text/html MIME type to myapplication1.desktop and application/xhtml+xml MIME type to myapplication2.desktop.