OS X (formerly Mac OS X) is the marketing name for Apple's computer OS. Note the proper pronunciation is "ohh ess ten" and not "oh ess ex".

learn more… | top users | synonyms (3)

18
votes
5answers
12k views

What does it mean if I have lots of “Inactive” memory at the end of a work day?

After a day's of work at my MacBook Pro running Mac OS X 10.6.5, Activity Monitor shows that the majority of my computer's 8 GB of memory is "Inactive", and only a tiny sliver of the pie chart is ...
10
votes
3answers
14k views

Reset your PATH variable

I stuffed up (basically wiped) my PATH variable. Is there any way to reset it to the default? I look at How do I reset the $PATH variable on Mac OS X?, but I find it very confusing. As far as I ...
9
votes
1answer
3k views

How can ZFS be used with encryption on OS X?

Ideals: protection of home directories should be better than in Lion (for multiple administrators: FileVault 2 alone is less secure than FileVault 1) resizing a file system should be simple and ...
16
votes
3answers
3k views

Is it possible to burn a DVD out of the Lion app store install?

Is it possible to burn a DVD out of the Lion app store install?
13
votes
3answers
10k views

How can I dim the screen from Terminal?

Is it possible to dim the screen from Terminal, in a Mac with OS X Lion? Is there any command to do control brightness and volume?
9
votes
6answers
27k views

How can I downgrade iTunes 11 to 10.7 in Mountain Lion?

Is it possible to downgrade from iTunes 11 to 10.7 using Mountain Lion? I tried to replace it by simply installing the 10.7, but it says that i can't replace a newer version.
13
votes
3answers
18k views

How can I increase my font sizes without decreasing my resolution?

I have a 24" iMac at home which at the max resolution (1920 x 1200) is very comfortable for me to see my desktop and read text. Now at work I have a 27" iMac with a max resolution of 2560 x 1440 ...
9
votes
2answers
3k views

How to keep sound from muting while using dictation?

Whenever I try to use the dictation feature in OSX, it mutes my sound. I want to hear the audio I'm playing in iTunes or somewhere else while I have dictation enabled. How can I do that?
8
votes
2answers
1k views

Trouble Understanding Inactive Memory in MacOSX

I thought that I understood how MacOSX manages memory, but recently I’ve become baffled by its performance. Here is the situation: I have a brand new Core i7 system with 8GB of physical memory ...
7
votes
3answers
11k views

Where does Time Machine store its settings?

I'm looking for the file that contains all the Time Machine exclusions entered in its Options dialogue. I know that (some of?) the scheduling related settings are stored in the ...
7
votes
6answers
8k views

Are there any features like Winamp's auto tag exist for iTunes?

It took me 3 months to ID3 Tag all of the MP3s (artist, album, released year, etc) in my iTunes library. It was annoying. I saw that Winamp solves this problem with an "Auto Tag" feature. Is there ...
33
votes
7answers
27k views

What is wired memory?

I'm trying to figure out what is using all of the memory in my Macbook Pro running OS X Lion. I have 8 GB of memory total. When I quit all active programs except Finder and Activity Monitor, then run ...
8
votes
4answers
15k views

How to persistently define aliases in Terminal

I want to add aliases to my environment so that they are available in all Terminal instances. I got this answer: Yes, you can put it in your .bashrc, .bash_profile or .profile. On some systems ...
5
votes
2answers
2k views

Icons remains the same after I have changed the default program for opening the file

I have just uninstalled a program from my new mac. The program was making itself default to open all .r files. I installed a new program, and I maked it default for opening .r files, but the old icon ...
14
votes
9answers
16k views

What software is available (preferably free) to edit PDF files on Mac OS X?

What free software/app is there to edit pdf files on Mac OS X? Specifically I am looking to edit an existing PDF file and re-save it in PDF format.
12
votes
3answers
11k views

Make a script/app run on logout

We all know that Mac OS X has the very useful Login Items functionality which lets you, among other things, set up apps/scripts to run when you log in. I'm looking for a way to setup a list of ...
9
votes
2answers
2k views

Many OS X app store apps are listed as “app” is damaged and can't be opened

Without having changed anything, I now get this message when I try to open the app "Breeze" - Other apps fail similarly on other Macs: I tried to get rid of this message by re-installing it from ...
7
votes
5answers
15k views

How to reset $PATH?

I was trying to add something to $PATH and it went totally wrong. I now can't run any commands such as ls. I've looked at this answer and used the following lines: ...
5
votes
2answers
7k views

How to restore system from network drive?

I have a 2014 MacBook Pro. I want to restore my OS from a Time Machine backup which is on a shared network volume. When I restart in recovery (Apple-Opt-R), it boots from internet, but if I try to ...
3
votes
2answers
1k views

How do I install Windows 10 on MacBookPro5,1, with no optical drive (SSD+HDD)

I have a huge problem. I am not able to install Windows 10 on my late 2008 MacBook Pro with bootcamp. I have replaced the optical drive as it was not working with a 1 TB HDD and i have a SSD drive ...
8
votes
4answers
6k views

Can I still use the older Airport Utility 5.5.3 if I install the 6.0 version of Airport Utility?

I have a simple network setup, and have read some initial reviews that say the new Airport Utility 6 for Mac OS X lacks some of the advanced settings that the older utility provides. I depend on those ...
18
votes
4answers
23k views

How do you delete apps from Lion's Launchpad?

When pressing alt/option in Lion's Launchpad, only some icons get the delete X overlay to remove them. How do you delete the others? I've read that control-option-command should do this, but it ...
4
votes
3answers
3k views

Hide App Name in Mac OS X Lion Dock

I am trying to figure out how can I disable/hide the App Name in MacOS X Lion dock. I've also attached an image so you can see what I mean. Someone has any idea about how can I hide that?
2
votes
1answer
175 views

Weird free spaces estimation

On my MacBook Pro Retina late 2014 running OS X Yosemite, there's something weird going on. If i look at the storage tab in the "About my Mac" menu, I use only 67 gigabytes of storage but it says 151 ...
81
votes
13answers
81k views

Write in NTFS using Mavericks [duplicate]

I was able to read and write NTFS filesystems normally in Mountain Lion, but after the upgrade this stopped to work. I installed ntfs-3g and fuse4x using homebrew in Mountain Lion and followed the ...
84
votes
53answers
14k views

What un(der)-documented features have you stumbled upon in Mountain Lion?

This question serves to share and collect the enhancements which are not documented by Apple, or documented poorly. Please justify your answer; if it is something that is well documented by Apple and ...
58
votes
5answers
12k views

Prevent redraw of menu bar icons Yosemite

When switching between two screens, all the icons in the menu bar appear to be re-drawn, causing an annoying jittery effect. This started happening after upgrading to Yosemite. Is there any ...
98
votes
9answers
69k views

WindowServer high CPU on Yosemite

This is a follow up to So my Yosemite install is slow - what to do? Since installing Yosemite a week or so ago my machine is very sluggish. I am a web developer so I change windows/apps a lot. ...
96
votes
9answers
84k views

What do I type to produce the command symbol (⌘) in Mac OS X?

What combination of keys do I press to produce the command symbol (⌘) on Mac OS X? (I copied the above symbol from http://en.wikipedia.org/wiki/Command_key.)
40
votes
7answers
23k views

How to set PATH for Finder-launched applications

Apps launched via Finder seem to not respect the PATH as set in .bash_profile. So when I try to run code from an IDE (Intellij) I no longer have access to programs in /usr/local/bin, which is ...
52
votes
5answers
28k views

Are Macs vulnerable to the Bash shellshock bug?

Red Hat recently announced a major security-related bug in the Bash shell. Some are calling it the "shellshock" bug. Since OS X is built off of Unix, is it vulnerable to attacks that exploit this bug? ...
20
votes
13answers
10k views

What orthodox file manager for OS X could I use?

I'm looking for a graphical file manager fro OS X, for console Midnight Commander is ok. I need two panels, function keys operations and preferably FTP and SCP support. Also, it would be great to be ...
53
votes
7answers
37k views

I am missing the option to see the remaining battery life as time in the menubar?

In previous versions of OS X the battery indicator in the menubar included options to show the remaining battery life as percentage or time (or nothing). In Mountain Lion, there's only an option to ...
51
votes
3answers
4k views

Where did the ~/Library folder go in Lion?

I just installed Lion, and I can't find the Library folder in my user folder. Does the folder no longer exist? If it doesn't, where are my preferences? If it does, how do I get to it?
32
votes
2answers
60k views

Why Mac OS X don't source ~/.bashrc [duplicate]

I found a lot of people figuring out why instruction similar to this : Put X to your ~/.bashrc and you can do Y don't work. It always turns out that Mac OS X's bash's startup files (or Mac's ...
16
votes
4answers
4k views

How to permanently put TextEdit in the Open with… menu list?

I'm a developer and often dealing with unusual file types. If I want to open one of these files in TextEdit, I have to start it first and then open the file with it, or drag the file to the TextEdit ...
30
votes
4answers
19k views

How to set to open folder with enter in finder?

I want to set to open a folder in finder with Enter. I know it's possible to open a folder with ⌘ Command + ↓ Down Arrow but I don't like it and I never use it because it's easier to use the ...
25
votes
7answers
32k views

What Is the Keyboard Shortcut for Sleep Display Without Eject Key?

I read that if you want to put your display into sleep the keyboard shortcut is Control ⌃+Shift ⇧+Eject ⏏, but what is it in Mountain Lion or Lion using a retina MacBook Pro or MacBook Air without an ...
18
votes
4answers
26k views

How to hide computer name and user name in terminal command prompt

How can I hide username and computer in terminal command prompt? In Terminal it says Last login: Mon Jan 13 00:00:14 on ttys000 Whatever:~ UserName$ Is it possible to show just the current ...
16
votes
3answers
5k views

How do I find the windowid to pass to screencapture -l?

The command line utility screencapture claims to be able to capture a single window without requiring interaction, but I can't figure out what to pass it. -l<windowid> capture this windowsid ...
15
votes
8answers
9k views

Snap feature for Mac?

Coming from Windows I have gotten extremely used to the Windows Snap feature, which resizes a window when it's dragged to the screen edges. However, it's not built into OS X. Are there any 3rd party ...
12
votes
30answers
5k views

What are some great OS X games? [closed]

Despite being a "subjective" question, it is a useful one for newcomers to the Apple platform, and serves to aide the lacking gaming community. What are your favorite OS X games? Rules: Limit to ...
8
votes
3answers
6k views

In Mountain Lion how do I set, in one place, the PATH environment variable for all newly launched applications?

On Ask Different there are many questions regarding the PATH environment variable and how to set it for applications launched by a shell, by spotlight or via the finder (typical questions: How to set ...
48
votes
5answers
28k views

How do I run an app in Full Screen mode on OS X Lion on my second monitor?

How do I get an app to run in Full Screen mode on OS X Lion on my second monitor? It seems to be stuck on my first monitor, and I'd like to move it.
28
votes
9answers
19k views

Is there a good command-line ID3 tool for OS X?

Anyone know of a command-line* ID3 tool, with support for ID3v2, that you can get working on Mac OS X with reasonable effort? It should support both reading and writing tags. (* I want to be able to ...
16
votes
4answers
10k views

How can I install the Command Line Tools completely from the command line?

I'd like to script the installation of the the Xcode Command Line Tools. On Mavericks, xcode-select --install will open a dialog prompting the user to install, but I'd like to trigger the install ...
8
votes
1answer
4k views

Why is it that my Mac would rather swap than clear inactive memory?

Why is it that my Mac (running 10.8 Mountain Lion) would rather swap than clear inactive memory? I know people say that the Mac OS manages itself and whatever, but there is a serious performance dip ...
17
votes
6answers
62k views

Move 'Pictures', 'Documents', 'Movies' etc folders

I would like to move folders like 'Pictures', 'Documents', 'Movies' to a different from the default under the root of user's home location, preferably into a sub-folder under the same user's home ...
11
votes
6answers
9k views

How can I use NTFS partitions in OS X?

My coworkers use NTFS partitions, and I can't share my data with them, as NTFS on Mac OS X is read-only. How can I read and write onto NTFS partitions?
10
votes
5answers
11k views

Uncheck “Reopen windows when logging back in” by default

The shutdown/restart dialog has a check-box Reopen windows when logging back in which is checked by default. I need to change its behavior to be unchecked by default. Is this possible? If yes, how can ...