Mac Library Preferences

Smartgit

Preferences文件夹在Mac OS X中是有两个的，其中一个是用户自己的，是可以通过Spotlight搜索到的，还有一个是系统的，是不能搜索到的，我教你找到系统的Preferences.
2018-9-17 根据自己的操作系统，进入相应的文件夹，可能还有一个版本号的文件夹，再进入删除settings.xml这个文件，比如mac下文件在重新进入SmartGit，正常。.

This appendix describes technologies that fill very specific roles. As a rule, if your goal is to have a process running while the user is logged in, you should almost always use either a launch daemon or agent, as described in Creating Launch Daemons and Agents.

Running Agents Before Login

Most software that displays a user interface does not run prior to the user logging in. However, in some rare cases, it may be necessary to create a graphical agent that does.

By default, OS X does not allow any application to draw content prior to login. If you need to do so, your agent must call the setCanBecomeVisibleWithoutLogin: method on its windows. For more information, see the documentation for that method and the PreLoginAgents sample code.

Authentication Plug-Ins

Authentication plug-ins are the recommended way to perform tasks during the login process. An authentication plug-in executes while the user is logging in, and is guaranteed to complete before the user is allowed to actually interact with their account.

Cd Library Preferences

You might write an authentication plug-in if you need to programmatically reset an account to a predetermined state, perform some administrative task such as deleting caches to reduce server utilization, and so on.

General preferences. In the General pane, you can change basic Photos preferences. For example, you can set whether photos are shown in a “summarized” view, select whether imported items are copied into your library, select whether GPS information is included with photos, and more.

To learn more about writing an authentication plug-in, read Running At Login.

Login and Logout Scripts

Important: There are numerous reasons to avoid using login and logout scripts:

Login and logout scripts are a deprecated technology. In most cases, you should use launchd jobs instead, as described inCreating Launch Daemons and Agents.
Login and logout scripts are run as root, which presents a security risk.
Only one of each script can be installed at a time. They are intended for system administrators; application developers should not use them in released software.

One way to run applications at login time is to launch them using a custom shell script. When creating your script file, keep the following in mind:

The permissions for your script file should include execute privileges for the appropriate users.
In your script, the variable $1 returns the short name of the user who is logging in.
Other login actions wait until your hook finishes executing. Therefore, your script needs to run quickly.

Use the defaults tool to install your login script. Create the script file and put it in a directory that is accessible to all users. In Terminal, use the following command to install the script (where /path/to/script is the full path to your script file):

To remove this hook, delete the property:

Use the same procedure to add or remove a logout hook, but type LogoutHook instead of LoginHook.

Note: If no plist file exists for com.apple.loginwindow, this method will not work. This file (/var/root/Library/Preferences/com.apple.loginwindow.plist) does not exist on a fresh installation until the user changes a login window setting (such as turning on fast user switching).

If you must install startup scripts programmatically, you should consider providing a copy of this file containing the default configuration options. Then, if the file does not exist, copy that default configuration file into place before running defaults. Again, application developers are strongly discouraged from using login or logout scripts, because only one such script may be installed.

Bootstrap or “mach_init” Daemons

In OS X v10.3, a mechanism similar to launchd was supported to allow the launching of programs either at system startup or on a per-user basis. The process involved placing a specially formatted property list file in either the /etc/mach_init.d or the /etc/mach_init_per_user.d directory. Such daemons also are sometimes referred to as mach_init daemons.

The use of bootstrap daemons is deprecated and should be avoided entirely. Launching of daemons through this process may be removed or eliminated in a future release of OS X.

Prefence

If you need to launch daemons, use the launchd facility. If you need to launch daemons on versions of OS X that do not support launchd, use a startup item.

What are system preference files on Mac OS X?
Your Mac's system preference files are files that store the rules (or parameters) that tell your apps how they should work. And you can find these preference files within each applications' contents.

And what about broken preferences?
Well, with time, these preference files can be corrupted (or broken) due to things like: an app crash, a sudden blackout, or even hard drive corruption.

Now, to fix them, we must delete them — Clean up these Mac preference files makes the app create a new, default preference file. This can help your app(s) operate correctly again. So, today, we'll go over two ways on how to remove system preference files: the easy way (with a utility), and the hard way (manually).

How to Fix System Preferences on Mac OS X | The Easy Way

Deleting preference files (well, refreshing them) on your Mac is incredibly easy with a Mac utility like CleanMyMac X. It scans your Mac for preference files that are broken and removes them with just a click of a button. CleanMyMac X contains a few cleaning modules responsible for cleaning your Mac in the most efficient manner. The System Junk module looks through your system and application folders to find different kinds of unneeded files, including broken application and system preferences.

To fix preference files on your Mac with CleanMyMac X, just:

Download CleanMyMac X (click here to download it).
Launch CleanMyMac X and select System Junk on the left.
Click Scan.
And then click Clean.

How To Get To Mac Library Preferences

In a few seconds, your Mac will be cleaned of unneeded system data, including broken preference files. If you'd only like to remove the broken preferences, before you click Clean, select 'Review Details,' only checkmark the box that says 'Broken Preferences,' and then click Clean. CleanMyMac X makes reseting system preference files on Mac incredibly simple. And it does a ton more, too. You can read more about it here.

However, if you'd prefer to remove Mac system preference files yourself, check out the section below.

How to Delete System Preference Files on Mac OS X | The Hard Way

How to find system preferences on a Mac? All preference files are stored in [Your Home Folder]/Library/Preferences. Usually they named in this manner:
com.[name of the software vendor].[name of the application].plist

Now, if you have an application that works incorrectly, you can find the corresponding preference file in the above-mentioned folder and remove it from there. On the next launch of the application, it will recreate a default version of that file and then begin working properly. However, if this doesn't happen, that it may be a good decision to put the broken preference file back — They can be a bit temperamental. It's highly advised that you make a copy of the preference file before you delete it, just in case something goes wrong.

So, to remove unnecessary system preferences (or preference files that are bugging your your application), check the:
/Library/Preferences

…system folder. To do this, open a Finder window, press Cmd+Shift+G and type the above in. However, be aware that items stored in that location could be incredibly important to your system and how it functions, so you should be 100% sure about the files you're going to delete.

Library/preferences Mac Deutsch

But again, we'd recommend looking into CleanMyMac X — it makes fixing and removing broken preference files on your Mac easy as can be.

Mac Hd/library/preferences/systemconfiguration/com.apple.boot.plist

We hope this article has helped you understand what Mac system preferences are, and how to delete system preference files on Mac.

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