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".

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47
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8answers
80k views

Where does the Mac store account pictures?

I took a picture to add to my account on Mac. Now I want to use it on messenger, but I can't find it. On the account config, it's too small. I need to find the original. Where are the accout ...
21
votes
4answers
26k views

Do MacBooks have a true “Hibernate” option?

I've recently switched from Windows to a MacBook pro. In Windows, there are the following shutdown options: Standby - the machine goes into a "light sleep" from which it can awaken very quickly ...
12
votes
6answers
15k views

Unsaved Files in OS X Lion

Where do unsaved files go in Lion? I quit TextEdit without saving since I had no intention of saving, but with autosave the file still got save somewhere since when I reopen TextEdit the file I was ...
16
votes
6answers
20k views

Do you know a simple sound booster app for Mac?

Some videos on websites have the sound volume so low that even with all sound settings at maximum levels it's hard to listen. I'm looking for an app that would allow me to boost the Mac's volume. ...
12
votes
5answers
16k views

Gigabytes of disk space shown as hidden space in DaisyDisk

My disk space usage doesn't add up. I should have used only about 80 gigabytes, but according to DaisyDisk about 25 gigabytes is taken up by hidden space. The mystery disk space seems to be classified ...
9
votes
0answers
17k views

Reclaim Delete freespace Partition after Yosemite removal [closed]

Many of you face the same issue , that you install Yosemite in a second partition and once you decided to remove Yosemite and go back to Mavericks, you are not able to claim the Freespace partition in ...
19
votes
3answers
2k views

Why is /tmp a symlink to /private/tmp?

Why is /tmp a symlink to /private/tmp on Mac OS X? In other words, why isn't /tmp just a regular directory, like on Linux or BSD? I understand how it works and I don't mind it, I'm just interested in ...
17
votes
12answers
19k views

What is an quick way to create a new blank file in Lion?

In Windows, one can create a new file using Right Click -> Add New -> Type of File. Is there an analogous action in Lion? I just want to create a new blank file on my Desktop.
16
votes
2answers
5k views

How to show hidden files and folders in finder?

I have a folder that starts with a dot . but unable to display them in Finder. How can I say that for folder X Finder should also display hidden files/folders?
12
votes
1answer
3k views

Why does the version of Java verified by Oracle differ from the version shown at the command line?

Questions Why do versions differ? Should we trust Oracle's verification routine? In some cases, the version verified by Oracle is different from the version shown at the command line. Example ...
19
votes
6answers
4k 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 ...
6
votes
6answers
29k views

How Should I Correct the Owners and Permissions in an OS X User Folder?

My issue is that I've seriously busted all of the owners and permissions on my user folder and subfolders and it's causing lots of issues using lots of applications. The initial cause was that I had ...
23
votes
5answers
13k 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 ...
3
votes
4answers
1k views

What techniques for disk, volume and file system management are possible with OS X, but troublesome within Disk Utility?

In the past, Disk Utility was the best starting point for the vast majority of disk-related tasks. As technologies within (or possible with) OS X have developed – without equal development of Disk ...
4
votes
3answers
4k 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 ...
3
votes
2answers
15k views

Terminal returns not found for most commands Mac OSX

I'm really new to Mac OSX and UNIX based systems. I wanted to run a few Windows games on my Mac Mini so I started installing Wine and MacPorts. Having done so, I typed in sudo port install wine and ...
2
votes
3answers
313 views

Any recommendations for a before&after software installation scanner/uninstaller?

I'm trying to decide on an uninstaller that does before and after system scans. So far, I've come across these three: CleanApp (syniumsoftware.com/cleanapp/) - which I saw someone recommend in this ...
47
votes
33answers
14k views

What are your favorite Mac OS X keyboard shortcuts?

What are your favorite keyboard shortcuts on Mac OS X?
64
votes
2answers
99k views

How can I create a symbolic link in Terminal?

What command is used to create a symbolic link/soft link?
32
votes
9answers
10k views

How do I speed up new Terminal tab loading time?

How can i speed up the terminal startup in Lion? I'm not referring to the startup of the Terminal application, but to the startup terminal windows, like when i open a new tab. I don't have anything ...
14
votes
4answers
23k views

Why is my Macbook Pro getting so slow?

On my MacBook Pro (Year 2009) it takes a long time until I'm logged in or until when a program is started. From day to dayit's getting slower. Programs like Safari or Word or MonoDevelop take up to 2 ...
12
votes
4answers
25k views

Discoveryd Alternative to Replace mDNSResponder Argument?

This is a direct follow-on to this question. Before Yosemite, I'd add the "-AlwaysAppendSearchDomains" argument to the mDNSResponder plist file so that all local resolver lookups added the search ...
35
votes
3answers
20k views

What's the difference between Real, Virtual, Shared, and Private Memory?

The different columns in Activity Monitor are a little confusing
18
votes
4answers
18k views

Copy and Cut sometimes don't work [closed]

My system is kept fully up to date and I still see this problem intermittently, although not as often as I used to; I would say that this has not been fully fixed. If there are any workarounds ...
23
votes
7answers
19k 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 ...
23
votes
6answers
20k 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 ...
23
votes
15answers
15k views

Lock Screen Command One-Liner

I'm trying to find out whether there is any kind of equivalent command line one-liner which replicates the exact identical functionality of the 'Lock Screen' menu option available via the Keychain app ...
34
votes
4answers
46k views

How can I send a mail message later?

Back in the day, I remember having an e-mail program (perhaps it was Eudora?) that could schedule the sending of mail, so when composing a message, you could set some preference for when it would be ...
19
votes
6answers
17k 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 ...
18
votes
5answers
11k 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 ...
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?
11
votes
4answers
8k 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.
9
votes
3answers
12k 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 ...
12
votes
3answers
15k 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 ...
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
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 ...
30
votes
6answers
23k 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
2answers
2k 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?
12
votes
2answers
10k 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 ...
12
votes
9answers
11k 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.
8
votes
2answers
10k 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 ...
6
votes
5answers
10k 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: ...
13
votes
5answers
5k views

How can I opt out of updates for one app when using the App Store?

I have an app that has been radically changed (Skitch) and I'd prefer to not see any of the updates that the developer has made available to that app on the App Store. I'm lazy and like to use the ...
10
votes
2answers
16k views

Where are photos stored in the new Photos app after importing from Aperture?

I have just upgraded OS X and opened the new Photos app to import my Aperture library. Everything went well (Photos work fine) but I am surprised to see that I didn't loose 100Gb free space on my HDD. ...
7
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 ...
8
votes
3answers
3k views

How to launch a GUI application in another user's graphical session?

I'm trying to figure out how to launch a GUI application as another user that's logged in interactively, in that user's graphical session. For example, say I have two users, foo and bar. Both are ...
3
votes
1answer
2k views

iTunes: Moving iTunes Files (Self Managed)

I'm trying to move all my music to another drive and I don't let iTunes organize my music for me. I moved the "iTunes" folder to my external and I also moved my Music folder which is also outside of ...