guido Media Utilization Visualizer

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The name guido originated from GUI + du -- the command-line disk usage utility.

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If the graphical representation of a file or directory comprises less than about two degrees of a circle, it is excluded from the display.

guido - Media Utilization Visualizer

guido shows a graphical representation of how the space on your volumes is utilized. It uses concentric circles to represent different levels in the file system hierarchy. In plain words, it shows you in a graphical way where all your disk space has gone.

You can launch guido from the Tracker, either directly or by dropping a volume or folder on its icon; or from the Terminal, optionally passing the names of one or more files or folders as arguments. If you launch guido without specifying a volume, it will wait until you drop one or more volumes or folders on its window or select a volume from the menu.

While guido is scanning a volume, it displays a status bar showing its progress. Multiple volumes are scanned in parallel (each in its own thread). You can view the progress on a volume by selecting that volume from the menu.

The main display
When guido finishes scanning a volume, it displays a graphical representation of the volume's files and directories.

The circle in the middle represents my /boot/home directory. Each segment of the ring immediately outside that circle represents a file or directory within /boot/home.

As you move the mouse over each part of the picture, information about each file or directory appears in the area at the bottom of the window. You can resize the window to increase or decrease the number of levels that guido displays.

Zooming
You can "zoom" in on a directory by clicking the primary mouse button on it. The picture is redrawn with that directory in the center circle. You can zoom out one level by clicking the center circle. At the outermost level, the center circle represents the volume itself, showing free and used space as pie slices.

Pop-up menu
Clicking the secondary mouse button on a part of the picture pops up a menu with Tracker-like options applicable to that file or directory. For directories, the menu includes an option to rescan that directory and its subdirectories (not the entire volume). This is useful since guido does not monitor changes to the file system.

Drag-and-drop
You can drag files and directories from guido to other applications (or to the desktop, the trash, etc.) with the primary mouse button. You can drop volumes and folders on guido's window to zoom directly to them.

The number of files that guido reports for a directory includes files in subdirectories too. A directory counts as a file. guido ignores symbolic links. If you don't like the colors guido uses, you can change them with your favorite resource editor.

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