If you turn off the system, it doesn’t boot up.Time Machine also gets restricted and restricts us from taking the backup.Cannot compress the files or folders.Some files may get compressed by luck.Copy Paste gets disabled and you will be getting an 8003 error.Terminal gets disabled and only the web browsers work for sometime.Many applications doesn’t work properly.When you delete the /var directory you may come across with many problems.When you delete the /var folder, these are following symptoms which you can observe: If you are here i assume that you have done something disastrous by accidentally deleting the /var folder on MacOSX. Never delete this directory because it leads to many severe problems such as data loss and non functionality of your applications! Check out the post in case if you have deleted the /var folder accidentally. /var/vm/app_profile – Holds information about various applications’ virtual memory usage./var/vm – Used to store the swap files for Mac OS X’s virtual memory.Some programs use one, some use the other, so Mac OS X provides both. /var/tmp – A place for programs to store temporary data, just like /tmp./var/run – Stores various status information about processes (especially daemons) running on the system.Note that this directory will exist even if you haven’t enabled the root account. /var/root -The root (superuser) account’s home directory./var/log – This is where many of the system event logs are kept (others are kept in /Library/Logs)./var/db – Holds various databases of the system information.The most notable are the netinfo databases(stored in /var/db/netinfo), shadow password files(in /var/db/shadow/hash),and the system’s network configuration database ( /var/db/SystemConfiguration/preferences.xml although it moved to /Library/Preferences/SystemConfiguration/ in 10.6), which together store much of the system and network configuration information that a traditional unix admin would expect to find in /etc, and a Mac OS 10 admin would expect to find in System Folder:Preferences./var/backups – Used to store backups of critical system information.This is actually under the /private/var.The directory which you see is the shortcut.It is just a symbolic link.Now lets see what is its significance! The folder contains the processes controlled by the operating system.Processes like printing and the programs that store the log files will use the sub directories in the /var directory to store those files.It also holds a fair bit of configuration information /var – This is actually a hidden folder in mac! Until and unless you make your mac to show the hidden files, this file will not be visible.Varis one of the most important directory on the Mac OS. The following is the piece of line which you need to run on your terminal. Uninstalling the Xcode from your machine just needs a single line execution on Terminal. So I had to remove or uninstall the entire Xcode from the machine to reinstall the newer version. It gave me warnings that the Xcode which I was using previously (4.0.3) is not compatible with Mountain Lion. etc got updated to the higher and newer versions but i couldn’t update my Xcode to 4.5 version. ![]() All the applications like iLife, iWork,Aperture,iTunes. ![]() ![]() I updated my OS from SnowLeopard(Mac OSX 10.6.8) to Mountain Lion(10.8.2) recently. I am writing this particular blog post because I faced the same problem today. Because the Xcode which you have downloaded from the torrents may not allow you to update the software to the newer version. Some or the other day would come when you need to uninstall the Xcode (downloaded from a torrent but not legally from the App Store) to Install a new version of Xcode from the App Store.
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