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  • A Guided Tour of the CentOS 6 GNOME Desktop - Techotopia
    adding items to the CentOS 6 GNOME desktop Create Folder Creates a new folder on the desktop A new folder icon appears on the desktop with a field provided for the user to enter a folder name The folder is physically located in the Desktop folder of the user s home directory Create Launcher Allows an icon to be placed on the desktop which when double clicked launches a specified application Another way to add application launchers to the desktop is to find them in the menu systems at the top of the screen right click on them and select Add this launcher to desktop Create Document Creates a new document on the desktop the resulting file is physically located in the Desktop folder of the current user s home directory Open in Terminal Launches a terminal window containing a shell command prompt where commands may be entered and executed The current working directory of the shell within the terminal is set to the Desktop subdirectory of the user s home folder Clean Up by Name Sorts and organizes the desktop icons in alphabetical order Keep Aligned A toggle setting which dictates whether icons should be neatly aligned on the desktop or allowed to be placed arbitrarily around the desktop Change Desktop Background Allows a different background image to be specified Right clicking on an icon produces the following menu allowing tasks to be performed on the selected item The Desktop Panels The bars across the top and bottom of the desktop are called panels Both the content and position of these panels may be configured to meet specific requirements a topic which is covered in detail in Configuring the CentOS 6 Desktop Panels By default the top panel appears as illustrated in the following figure The Application menu provides access to the applications installed in the system The Places menu provides a list of locations which when selected are opened in file browser windows Available locations include devices such as hard disk or CD DVD Drives the current user s home folder and other systems on the network The System menu provides options for configuring the system and desktop environment including factors such as desktop theme and screen resolution The icons next to the system menu provide quick access to common applications and tools The default icons will depend on the packages installed such as Firefox the Evolution email client and the OpenOffice office productivity tools but may be configured to add additional launchers for tools or applications you find you use regularly The right hand side of the panel includes the current time a volume control and a network status indicator To establish a network connection access a variety of configuration options by clicking with the left and right mouse buttons on the icon Also present on laptop based installations is an icon indicating current power status A variety of other status icons will appear in this section from time to time Typically hovering over or clicking on

    Original URL path: http://www.techotopia.com/index.php/A_Guided_Tour_of_the_CentOS_6_GNOME_Desktop (2016-02-13)
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  • Configuring the CentOS 6 GNOME Desktop Background - Techotopia
    to reflect the new selection Additional images may be added to the gallery by clicking on the Add button and navigating to the image file The Style menu provides a range of options for handling images that do not precisely match the screen dimensions Choices include zooming tiling scaling and fitting Creating a Solid or Graded Background If you prefer a background consisting of a solid color simply select the blank option located at the top left of the gallery list make sure the Solid Color option is selected next to Colors and click on the color box to select a color The background may also be created by specifying a color gradient transition from one color to another The gradient may be horizontal or vertical With the blank wallpaper option selected change the Color menu to Vertical or Horizontal Gradient Using the two color boxes located to the right of the menu specify the start and end colors The desktop will then create a background image based on these settings For example the following figure shows a horizontal gradient from blue to yellow Specifying a Background Image As mentioned previously there are two ways to specify an image file for the CentOS 6 desktop background One way is to open an image for example in a web browser clicking with the right mouse button and selecting Set as Desktop Background from the resulting menu This will cause the following dialog to appear asking how the image is to be positioned on the desktop From this dialog select whether the image should be tiled stretched or centered If space is going to be visible around the edges of the image be sure to select a suitable color for the border area using the color box Click on Set Desktop Background

    Original URL path: http://www.techotopia.com/index.php/Configuring_the_CentOS_6_GNOME_Desktop_Background (2016-02-13)
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  • Installing and Customizing CentOS 6 Desktop Themes - Techotopia
    aspect of that particular theme Note that themes are not considered to be a system wide setting This means that changes made to the current theme affect only the currently logged in user Other users will still see their preferred theme when they log in Changing the CentOS 6 Desktop Theme Theme settings are configured from the Theme Preferences panel accessed from the System Preferences Appearances menu option and selecting the Theme tab of the resulting dialog Once invoked the dialog will appear as illustrated in the following figure The current theme is the highlighted theme in the above screen this is the System theme To change to a different theme simply select the desired theme from the list The desktop will dynamically change to reflect the newly selected theme Downloading and Installing a Theme Although CentOS 6 is installed with several different theme options in reality this represents only a small subset of themes that are available online A wide range of themes are available for download from http art gnome org themes The themes are downloadable by theme sub category i e Window Border Icons etc By way of example we will start by installing a new Window Border theme On the home page of the GNOME ART Themes web page click on the Window Borders link located beneath the Categories heading This will filter the list of themes so that only Window Border themes are displayed Scroll down the list and click on a theme that is not currently available on your CentOS 6 installation for this example we will use the MetaGrip theme Select the option to download the theme and choose the option to open the theme using the Theme Installer Once installed the option will be provided to apply the theme to the current desktop For the purposes of this exercise select the Keep Current Theme button Once the theme has been added you will notice that it does not appear on the main screen of the Theme Preferences dialog This is because this is a Window Border theme not an entire desktop theme It can however be used to create or customize an existing desktop theme package Creating a Custom CentOS 6 Theme Package It is possible to either customize an existing theme or to create an entirely new desktop theme In this example we will create a custom theme which includes our new Window Border design Scroll down the list of themes until you find a theme on which to base the new theme that we are going to create Select this theme and click on the Customize button In the resulting Customize Theme dialog select the Window Border tab so that the list of available window border themes appears Scroll up and down the list of themes until you find the new theme in this case the MetaGrip theme Select the theme and watch the desktop window borders change instantly to this new style Spend some time changing some of the

    Original URL path: http://www.techotopia.com/index.php/Installing_and_Customizing_CentOS_6_Desktop_Themes (2016-02-13)
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  • Configuring CentOS 6 Desktop Fonts - Techotopia
    application Desktop font The font used to display text under the icons on the desktop such as folder names Window title font The font used on the text in window titles Fixed width font Specifies the font to be used when the system needs to display fixed width text A prime example of this is the text that is rendered in a Terminal window In terms of font selection options fonts may be specified by type Utopia Serif Monospace etc style Regular Bold Italic and size 10pt 11pt etc Changing Font Settings Font settings are controlled via the Appearance Preferences dialog which is accessed via the System Preferences Appearance menu Once the appearance preferences dialog is displayed select the Fonts tab When invoked the Font Preferences page should appear as shown in the following figure Click on the button next to the font category you wish to change to invoke the Pick a Font dialog This dialog allows the selection of a font based on family point size and style The Preview area allows you to see how the font looks before applying it to the desktop Once you have selected a suitable font click on the OK button to apply the selection to the desktop settings Font Rendering Settings The Font settings page provides four font rendering options Monochrome Displays text in black and white This invariably results in characters having jagged edges Best Shapes Uses antialiasing to smooth the edges of the characters where possible This is typically the preferred option when using a CRT based monitor Best Contrast The preferred option for visually impaired users Uses antialiasing combined with adjustments to maximize the contrasts between the characters and the background Subpixel Smoothing Uses the shape of LCD pixels to render the smoothest possible fonts on LCD screens

    Original URL path: http://www.techotopia.com/index.php/Configuring_CentOS_6_Desktop_Fonts (2016-02-13)
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  • Configuring the CentOS 6 GNOME Desktop Panels - Techotopia
    longer be visible the minimum value is typically around 23 pixels A different color or even an image may be specified for the panel background These settings are available from the Background page of the panel properties dialog The level of transparency may be specified by selecting the Solid color option and adjusting the Style slider The panel may be further configured so that it remains hidden until the mouse pointer moves to the side of the desktop where the panel is located To activate this feature select the Autohide option on the General panel of the properties window Finally if you do not wish to have the panel occupy the full width or height of the desktop depending on the orientation of the selected panel unset the Expand option The panel will then only appear as wide or as tall as it needs to be to accommodate the items it is configured to display Adding Items to a CentOS 6 GNOME Desktop Panel When CentOS 6 is first installed a number of items are added by default to the two panels Additional items however may easily be added to any panel There are a couple of ways to add items to the panel If there is an application you frequently launch from the Applications menu there is a quick way to add a launch icon to the panel Simply open the Applications menu and navigate to the menu option for the desired application Rather than clicking on this menu item with the left mouse button as you normally would click instead with the right mouse button and select the Add this launcher to panel option An icon representing the application will subsequently appear on the panel which when clicked will launch the corresponding application Alternatively launch the Add to Panel dialog by right clicking on a blank area of the desired panel and selecting Add to Panel from the resulting menu In the resulting dialog select Application Launcher and click Forward The dialog will list each menu item and all sub menu items If for example you wanted to be able to launch the Terminal window from the panel simply click on the arrow next to System Tools in the Add to Panel dialog to unfold the list of System Tool applications Scroll down the list select Terminal and click on the Add button In addition to applications from the menu it is also possible to add a range of items specifically designed to appear on panels To add such items to a panel click with the right mouse button over the panel to be configured and select the Add to Panel menu option from the resulting popup menu The Add to Panel dialog will then appear as follows To add an item to the panel simply scroll through the list provided select the required item and press the Add button The following CentOS 6 desktop panel includes the System Monitor and Invest items To edit the properties or

    Original URL path: http://www.techotopia.com/index.php/Configuring_the_CentOS_6_GNOME_Desktop_Panels (2016-02-13)
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  • Configuring the CentOS 6 Desktop Menu System - Techotopia
    terminal window Applications System Tools Terminal and enter the following commands including the root password when prompted su yum install alacarte If you prefer to use the graphical tool select the System Administration Add Remove Software menu option enter alacarte into the text box and click the Find button The search should result in Menu Editor for the GNOME desktop package appearing in the main window If it is not already installed set the check box and click on the Apply button to initiate the installation Once the package has been installed it will be necessary to log out of the current desktop session and then log back in before proceeding with the remainder of this chapter Customizing the CentOS 6 Desktop Menus To customize a menu right click over the menu name in the panel and select Edit Menus The Main Menu dialog will subsequently appear as follows The left hand panel lists the main top level menus together with the sub menus for each menu for example Accessories is a sub menu of the Applications menu Selecting an entry in the Menus list causes a list of items in that menu to appear in the center hand panel Moving Menu Items The position of existing items in a menu may be moved up or down to a new location simply by selecting the item in the list and pressing the Move Up and Move Down buttons respectively Adding and Deleting a Menu Item A new item may be added to a menu by selecting the menu in the left hand Menus list and clicking the New Item button This will display the Menu Item Properties dialog as illustrated in the following figure In the Name field enter the name to be displayed in the menu Next enter the

    Original URL path: http://www.techotopia.com/index.php/Configuring_the_CentOS_6_Desktop_Menu_System (2016-02-13)
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  • Browsing the System, Files and Folders on the CentOS 6 Desktop - Techotopia
    devices and file systems on the system are listed Double clicking on any of these icons will open a new window containing the files and folders on those devices The properties of any icon such as file system type and disk usage can be displayed by clicking with the right mouse button over an icon and selecting Properties from the resulting menu The following figure shows the properties dialog for a file system Adding Emblems to Files and Folders Recent versions of Nautilus provide a useful feature that allows descriptive emblems to be placed next to file or folder icons For example you might want to display a Camera emblem next a folder in which you store digital pictures or a Presentation emblem next to a file containing a presentation The addition of emblems is achieved using the Nautilus Properties panel As an example we will add emblems next to the following Documents and Mail Archive folders To add an emblem select the Documents folder and right click with the mouse From the popup menu select Properties and in the properties dialog click on the Emblems tab Scroll down the list of emblems until you find the documents emblem and select the checkbox to add the emblem Note that you can add more than one emblem to each file or folder Repeat these steps to add a Mail emblem to the Mail Archives folder and close the properties dialog The end result should appear as follows Changing File and Folder Permissions The access permissions on files and folders may also be changed using Nautilus As with most other file and folder settings this is achieved using the Properties dialog Click with the right mouse button over the file or folder to be changed and select Properties from the popup menu

    Original URL path: http://www.techotopia.com/index.php/Browsing_the_System,_Files_and_Folders_on_the_CentOS_6_Desktop (2016-02-13)
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  • Configuring the CentOS 6 Nautilus File Manager - Techotopia
    list form As shown in the following figure this allows additional information about each item to be displayed Configuring the List View The List view may be further configured to specify which data fields are displayed In the above figure only the name Size Type and Date Modified columns are displayed These fields are configured via the List Columns page of the File Manager Preferences dialog accessed via the file manager s Edit Preferences menu option Set the checkboxes next to the columns to be displayed or move columns to different locations using the Move Up and Move Down buttons Close the preferences dialog when the configuration changes are complete Configuring the Icon View If you prefer the Icon view to the List view in the Nautilus File Manager windows it may be useful to know that the way icons are displayed can also be configured As with previous settings described in this chapter these adjustments are made via the Preferences dialog of the Nautilus manager this time using the Views tab The size of the icons can be changed using the Default zoom level selection box The following figure shows the icons at 66 zoom It is also possible to zoom in and out in real time by pressing the Ctrl and keys simultaneously to zoom in and the Ctrl and keys to zoom out The option is also provided to define how the captions beneath an icon appear at different zoom levels These settings are controlled from the Display page of the Preferences dialog The three selection menus specify what is to be displayed at each zoom level Configure these to your requirements The following figure shows a folder with three captions at maximum zoom In addition the icons can be used to preview the content in a

    Original URL path: http://www.techotopia.com/index.php/Configuring_the_CentOS_6_Nautilus_File_Manager (2016-02-13)
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