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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18
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3answers
29k views

What steps are needed to create a new user from the command line?

What commands (or script) can create a fully functional user account on Mountain Lion, running only from the command line via terminal or ssh. It looks like an existing pair of answers might work, ...
29
votes
7answers
27k 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 ...
28
votes
8answers
21k 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 ...
35
votes
4answers
55k 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
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
15k 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 ...
15
votes
3answers
11k 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?
11
votes
8answers
49k 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 ...
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?
10
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?
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.
35
votes
7answers
29k 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 ...
17
votes
8answers
11k views

Can I manually limit the %CPU used by a process?

I would like to limit the amount of CPU time dedicated to certain processes (e.g. Firefox, Safari, ...). I can't understand why such programs, even when not used (nothing loading, no animations, ...
14
votes
3answers
19k 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
3answers
12k 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 ...
8
votes
5answers
17k 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 ...
7
votes
4answers
17k 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, ...
6
votes
2answers
3k 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 ...
5
votes
2answers
9k 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 ...
16
votes
2answers
41k 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 ...
15
votes
9answers
18k 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 ...
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 ...
7
votes
5answers
17k 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
2k views

How to recover a deleted file on Mac OS X?

We have tried Boomerang but it does not find the deleted file. The file was deleted 3 days ago. I would think it is recoverable, but Boomerang does not show it. Any help would be appreciated.
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
185 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 ...
233
votes
8answers
149k 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
82
votes
13answers
83k 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 ...
102
votes
10answers
92k 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.)
98
votes
9answers
74k 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. ...
41
votes
7answers
25k 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
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 ...
68
votes
7answers
49k views

How can I use Gmail as the default mail client app in Mac OS X?

I use Gmail as my e-mail client, but when I click on a "mailto:" link, the Mail.app is opened. Is there a way to avoid the Mail.app opening in this case? Can I open Gmail instead?
13
votes
6answers
49k 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. ...
53
votes
7answers
38k 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 ...
19
votes
4answers
29k 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 ...
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?
31
votes
4answers
21k 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 ...
17
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 ...
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 ...
12
votes
5answers
8k views

Is there a way to hide certain apps from the cmd+tab menu?

Is there a way to hide certain apps from cmd+tab? The problem I'm facing is that I have some apps (like iTunes and of course Finder) always open. But when I'm working and switching between apps that ...