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". it is be replaced by macOS to match its the format of watchOS, tvOS, and ios.

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33
votes
7answers
28k views

Can I get windows 7 like window resizing on Mac OS X?

Windows 7 has a nice new feature for moving around windows. The one that I am particularly interested in is: Windows Key + Left/Right : Move the window to the left or right of the screen, or over ...
30
votes
8answers
22k views

How can I reinstall an application that the Mac App Store thinks is installed already?

I'm the developer of an application that is currently on the Mac App Store. I'm trying to download my own application so that I can test out the binary that is on the store. (As opposed to running it ...
21
votes
7answers
20k views

How do I make windows save their position on screen after re-attaching a display?

When I attach a second monitor to my MacBook, I drag many windows onto it. When I detach the monitor, all the windows move back onto my MacBook's display. How can I make it so that when I re-attach ...
20
votes
5answers
13k 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 "...
16
votes
3answers
12k 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
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 ...
13
votes
2answers
4k 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?
11
votes
8answers
50k views

How can I copy the OS X system image from primary HDD to new SSD?

I bought a 240 GB SSD to replace the 500 GB primary HDD in my new MacBook Pro. How do I clone the current Lion system image on my 500 GB HDD to the SSD? I want to clone the entire drive not just copy ...
11
votes
3answers
2k views

How do I recover the administrator or root password on OS X?

I received a hand me down white MacBook with 10.4 on it and it automatically logs into a user account that isn't able to change much in the preference pane. How do I recover or change the ...
30
votes
8answers
18k views

How can I add a new application to the Open With menu?

How can I add an application to the Open With menu (shown after right-clicking) for a given file type, without making that file always open with that application? In this specific instance, I'd like ...
22
votes
6answers
6k views

QuickLook blanks when displaying some images

When using QuickLook to quickly look through multiple images (pressing space and then using the arrow keys to navigate), some images will not get displayed by QuickLook when hitting them up a second ...
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?
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 ...
15
votes
3answers
18k views

How can I tell if my Mac is keeping the clock updated properly?

I would like to know what the default settings for OS X are in terms of keeping the clock adjusted when I enable automatic time sync in the Date & Time preference. I do know that the venerable ...
10
votes
1answer
2k views

AirDrop on Unsupported Macs?

One of the Lion features I would really like to use is AirDrop. It would make transferring files so much faster than using a flash drive. Unfortunately, my Mac is a 2007 Black MacBook, and AirDrop is ...
9
votes
4answers
20k views

Are OS X shutdown cause and sleep cause numbers listed/explained anywhere?

The numbers in which I'm most interested -2 0 3 5 … I might add to that shortlist. What do those numbers mean; where might we find authoritative explanations? Somewhere in Apple open source, ...
7
votes
3answers
13k 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 com.apple.backupd-*....
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 ...
15
votes
8answers
96k views

Is there a file copy utility for OS X that's similar to TeraCopy for Windows?

On Windows, I use TeraCopy for improved file copying. Are there any similar equivalents for OS X? In particular, I'd like to see things like copy speed.
5
votes
2answers
12k 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 ...
4
votes
4answers
22k views

Recovering data off of a dead hard drive

My hard drive died in my macbook and it no longer will start up. It will not mount in an external enclosure but disk utility is still reading that the hard drive is there, and I tried to repair disk ...
17
votes
2answers
42k views

Disable App Update Notifications on OSX?

When I have apps that need updating in OSX I get a notification on the top-right corner of my screen that does not go away until I click it (which opens the app-store). Is there a way to turn these ...
12
votes
3answers
12k 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 ...
10
votes
2answers
3k 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 ...
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 ...
7
votes
3answers
6k views

Can I change some but not all Apple keyboard function keys (dim vs F1, bright vs F2)?

I want to override F1 and F2 behavior, since I have external display and Mac can't control display's brightness. The rest of the keys should retain their non Fx I know about "Use all F1-F12 keys as ...
4
votes
2answers
35k views

How do i install OS X on new hard drive? I have macbook pro mid 2010.

I have 13 inch mid 2010 macbook pro. Just installed new 1T hard drive but now am hesitating on what to do next. I have my old hard drive converted to external drive and a back up drive as well.
18
votes
3answers
16k views

Is there a user font for San Francisco in El Capitan?

I thought the new Apple font was called San Francisco, but I cannot find it in the font list of the Keynote.app for my Mac. Is it called another way or it is not available for Keynote? I am currently ...
2
votes
1answer
205 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 ...
2
votes
2answers
185 views

Using Apple Script to Manage Sound Output Selection

I am brand new here and I have an additional clarification or need additional help for an issue from this thread - Applescript: "can't get tab group 1 of window" (El Capitan) In my ...
1
vote
2answers
2k views

Alternative Method to Acquire El Capitan Upgrade

Is there a way to acquire a copy of the El Capitan upgrade without downloading it first via the App Store, for example via a USB Drive? I know you can make a USB Drive after downloading El Capitan, ...
245
votes
8answers
158k views

How can I configure Mac Terminal to have color ls output?

How can I configure Mac Terminal to have color ls output? I am using MacOS 10.5
83
votes
13answers
85k 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 ...
108
votes
10answers
100k 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.)
103
votes
10answers
78k 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. ...
46
votes
7answers
27k 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 ...
67
votes
4answers
56k views

Hotkey to show hidden files and folders in File Open dialog?

This question is very similar to Is it possible to always show hidden/dotfiles in Open/Save dialogs?. How to show hidden files and folders in finder? is also related. However, I don't want to always ...
53
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
14answers
11k 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 ...
16
votes
6answers
55k views

How Can I Search A Specific Type of File in Mac?

Is there any way to search a specific type of file using Spotlight? I remember there was a special command or something that I had to put in front of the search phrase but I cannot remember it now. ...
13
votes
2answers
14k views

What is standard for os x filesystem? e.g. /opt/ vs. /usr/

What does and should go into /opt/ and what should/does go into /usr/? My understanding is that /usr/ used to be for user home directories, but since that exists in /Users/ - what is the purpose now? ...
8
votes
4answers
23k views

How to reset Launchpad ordering in OS X Yosemite?

Previously I can remove the files end with db in ~/Library/Application Support/Dock/ to reset the ordering of apps, but now doing the same thing doesn’t help. Do anyone know where the new path that ...
20
votes
4answers
33k 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 ...
53
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?
20
votes
8answers
10k 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 ...
16
votes
4answers
5k 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 ...
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 ...
26
votes
7answers
33k 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 ...
15
votes
6answers
22k views

re-mount ejected SD card without reinserting

I use a microSD card in my macbook air for additional storage, using a flush adapter (homemade, similar to the nifty minidrive). To save battery when I'm not using it, I disabled auto-mount using /...
49
votes
5answers
29k 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.