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1. What Is Knowledge File In Mac User Library Mac
2. What Is Knowledge File In Mac User Library In Java
3. What Is Knowledge File In Mac User Library In Windows
4. What Is Knowledge File In Mac User Library In California
5. What Is Knowledge File In Mac User Library In Ohio
6. What Is Knowledge File In Mac User Library In Texas
7. What Is Knowledge File In Mac User Library In Excel

The files and folders in /Library are generally meant to be left alone, but if you’ve been using OS X for a while, chances are you’ve delved inside. Using a tip from Macworld, Mac OS X.

Look at the folder structure of a typical OS X installation. Open a Finder window and click the icon for your hard drive (which is typically called Macintosh HD) in the Sidebar. You should see at least four folders: Applications, Library, System, and Users. Within the Users folder, each user has his own set of folders containing documents, preferences, and other information that belongs to that user and account.

From the top: The Computer folder

The Computer folder shows all the storage devices that are currently connected to your Mac. The following steps show how you can start at the Computer folder and drill down through the folder structure:

1. To find the Computer folder, choose Go→Computer or press Shift+Command+C.

   The Computer folder in this example is called Bob L’s MacBook Pro, and it contains a hard-drive icon (Mavericks HD) and a Network icon, with which you can access servers or other computers on your local network.

2. Double-click the icon that holds your OS X stuff.

   Technically, this drive is called your boot drive. If you haven’t changed it, it’s probably called Macintosh HD.

3. Check out the folders you find there.

   You should see at least four folders (unless you’ve added some; if you installed the Xcode programming tools, for example, you have more).

The Applications folder

You can access the Applications folder, located at the root level of your boot drive, by clicking the Applications icon in the Sidebar, by choosing it in the Go menu, or by pressing Shift+Command+A. In this folder, you find applications and utilities that Apple includes with OS X.

Fonts (and more) in the public Library folder

The Library folder, at the root level of your OS X hard drive, is like a public library; it stores items available to everyone who logs into any account on this Mac.

What Is Knowledge File In Mac User Library Mac

Leave the /System/Library folder alone.Don’t move, remove, or rename it, or do anything within it. It’s the nerve center of your Mac. In other words, you should never have to touch this third Library folder.

By and large, the public Library subfolder that gets the most use is the Fonts folder, which houses many of the fonts installed on the Mac

Finally, the Library in the Users folder is where OS X stores configuration and preferences files shared by all users.

If your Mac is set up for multiple users, only users with administrator (admin) privileges can put stuff in the public (root-level) Library folder.

The System folder

The System folder contains the files that OS X needs to start up and keep working.

Leave the System folder alone.Don’t move, remove, or rename it or anything within it. It’s part of the nerve center of your Mac.

The usability of the Users folder

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When you open the Users folder, you see a folder for each person who has a user account on the Mac, as well as the Shared folder.

The Shared folder that you see inside the Users folder allows everyone who uses the Mac to use any files stored there. If you want other people who use your Mac to have access to a file or folder, the Shared folder is the proper place to stash it.

There’s no place like Home

From the Users folder, you can drill down into the Home folder to see what’s inside. When the user logs on to this Mac, his Home folder appears whenever he clicks the Home icon in the Sidebar, chooses Go→Home, or uses the keyboard shortcut Shift+Command+H.

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Your Home folder is the most important folder for you as a user — or at least the one where you stash most of your files. It is strongly recommend that you store all the files you create in subfolders within your Home folder — preferably, in subfolders in your Home/Documents folder.

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When you open your Home folder, you see a Finder window with a little house icon and your short username in the title bar. Seeing your short username in the title bar tells you that you’re in your Home folder. Every user has a Home folder named after his or her short username.

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If your Mac has more than one user, you can see the other users’ Home folders in your Users folder, but OS X prevents you from opening files from or saving files to them.

By default, your Home folder has several folders inside it created by OS X. The following four are the most important:

• Desktop: If you put items (files, folders, applications, or aliases) on the Desktop, they’re actually stored in the Desktop folder.

• Documents: This is the place to put all the documents (letters, spreadsheets, recipes, and novels) that you create.

• Library: This Library folder is invisible in Mavericks. Rest assured that even though it’s hidden, it’s still one of the most important folders in your Home folder, containing Preferences, fonts available only to you, and other stuff that you expect to use.

• Public: If others on your local area network use file sharing to connect with your Mac, they can’t see or use the files or folders in your Home folder, but they can share files you’ve stored in your Home folder’s Public folder.

You can create more folders, if you like. In fact, every folder that you ever create (at least every one you create on this particular hard drive or volume) should be within your Home folder.

• The file locations given here are defaults. Some of these files can be changed to a custom location depending on settings changes made in Lightroom.
• While troubleshooting, when possible, rename files instead of deleting them.
• If possible, back up catalogs on a different hard disk or volume from the disk where your catalog is located. For more information on backing up in Lightroom, read Back up a catalog.

• The Lightroom application file is named Adobe Photoshop Lightroom 4.app and is in the //Applications/ folder.
• The preference setting file is com.adobe.Lightroom4.plist and is in //Users/[user name]/Library/Preferences/.
• The //Users/[user name]/Pictures/Lightroom/ folder contains the following files:
  • Lightroom 4 Catalog.lrcat: the Lightroom database file
  • Lightroom 4 Catalog Previews.lrdata: contains preview data for your photos
  • Lightroom 4 Catalog.lrcat.lock: prevents overwriting the catalog while it is in use
  • Lightroom 4 Catalog.lrcat-journal: crash recovery file

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• Catalog backups are saved to //Users/[user name]/Pictures/Lightroom/[catalog name]/Backups/.
• Saved and imported presets and templates have filenames ending in .lrtemplate and are in the //Users/[user name]/Library/Application Support/Adobe/Lightroom/ folder.
• Registration data (serial number) is in //Library/Application Support/Adobe/Lightroom/Lightroom 4.0 Registration.

Important: Apple made the user library folder (//User/Library/) hidden by default with the release of Mac OS X 10.7. If you require access to files in the hidden Library folder to perform Adobe-related troubleshooting, see Access hidden user library files.

• The Lightroom application is named Lightroom.exe and is in the C:Program FilesAdobeAdobe Photoshop Lightroom 4 folder.
• The preference setting file is Lightroom 4 Preferences.agprefs, in C:Users[user name]AppDataRoamingAdobeLightroomPreferences.
• The C:Users[user name]PicturesLightroom folder contains:
  • Lightroom 4 Catalog.lrcat: the Lightroom database file
  • Lightroom 4 Catalog Previews.lrdata folder: which contains additional folders for preview files and data
  • Lightroom 4 Catalog.lrcat.lock: prevents overwriting the catalog while it is in use
  • Lightroom 4 Catalog.lrgat-journal: crash recovery file

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• Catalog backups are saved to C:Users[user name]PicturesLightroomBackups.
• Saved and imported presets and templates have filenames ending in .lrtemplate and are located in C:Users[user name]AppDataRoamingAdobeLightroom.
• Registration data (serial number) is located in the C:ProgramDataAdobeLightroomLightroom 4.0 Registration.lrreg file. Lightroom 4 reads the Lightroom 3.0, 2.0, or 1.0 registration registry entry when it validates upgrade serial numbers. If you install an upgrade version of Lightroom 4 and it does not find a file for either Lightroom 3.0, 2.0, or 1.0, it prompts you to enter the previous version serial number.

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