Questions tagged [macos]

macOS is the current marketing name for Apple's Macintosh Operating System. This OS was previously known as OS X, and Mac OS X before that (which itself succeeded the 'classic' Mac OS).

Filter by
Sorted by
Tagged with
1797
votes
7answers
1.2m views

Why am I getting an “invalid active developer path” when attempting to use Git after upgrading to macOS Catalina?

After upgrading to macOS Catalina, I tried to run git from Terminal but it kept giving me the following error: xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), ...
581
votes
155answers
331k views

Please share your hidden macOS features or tips and tricks

Do you know any hidden or little-known nice feature of macOS (née Mac OS X)? It doesn't matter what it is—maybe just a short terminal command or a keyboard shortcut. Share your experiences on ...
404
votes
133answers
239k views

Got any tips or tricks for Terminal in Mac OS X?

One tip or trick per answer. My favorite is open . Opens the folder you're currently browsing in Finder. You can also pass URLs, images, documents or else to open. If you specify a program name ...
376
votes
12answers
131k views

Remap “Home” and “End” to beginning and end of line

Most of my computing time is spent in Linux (with occasional time in Windows). On these platforms the Home and End keys universally jump to the beginning or end of the current line. I am gradually ...
370
votes
6answers
521k views

How can I create a symbolic link in Terminal?

What command is used to create a symbolic link/soft link?
370
votes
7answers
267k views

How do I recompile Bash to avoid Shellshock (the remote exploit CVE-2014-6271 and CVE-2014-7169)?

Given that Bash 3.2 (the version shipped by OS X) is vulnerable to the remote execution exploit known as "Shell Shock" (CVE-2014-6271 and CVE-2014-7169) how do I rebuild Bash and secure my system ...
353
votes
11answers
276k 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
351
votes
7answers
263k views

How to find cause of high kernel_task cpu usage?

Occasionally my machine will have a kernel_task instance max out the CPU: This can last from minutes to sometimes hours. The machine is effectively unusable in this state. Restarting doesn't help; a ...
347
votes
11answers
343k views

Shortcut for toggling between different windows of same app?

I opened two Google Chrome windows (because I am using multiple Gmails) and when I do the Cmd ⌘ Tab ⇥ shortcut it just shows me other applications that I opened but does not show me the other Chrome ...
307
votes
5answers
105k views

How can I disable animation when switching desktops in Lion?

I would very much like to disable the sliding animation that occurs when switching desktops via ctrl+→/← or ctrl+[number] in Lion. This was previously accomplished in previous versions ...
279
votes
7answers
129k views

“File Open” dialog is missing sidebar items

I'm having the strangest issue since updating to OS X El Capitan. My "Open File" dialogs show the sidebar but all my main (and useful) locations are missing. Take a look at this screenshot. This ...
274
votes
3answers
179k 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 ...
274
votes
3answers
1.5m views

How to Retrieve the Wi-Fi Password of a Connected Network on a Mac

I need to find the password for a Wi-Fi network that I am already connected to. I'm using a MacBook Pro that's running OS X Lion. Any guidance is appreciated.
261
votes
8answers
565k views

How to change computer name so terminal displays it in Mac OS X Mountain Lion? [duplicate]

When I setup my computer I named it "Scott's MacBook Pro". And so when I go to System preferences->Sharing, it says Scott's MacBook Pro there as my computer name. However, opening up a terminal gives ...
260
votes
12answers
388k views

How do I downgrade node or install a specific previous version using homebrew?

I'm using brew. I have node installed, using brew. I want to use an earlier version of node. Online, I find instructions such as, for example: cd /usr/local/Library/Formula brew remove node --force ...
259
votes
1answer
79k views

How to prevent Mac from changing the order of Desktops/Spaces

You may have encountered a situation in which Mac changes the order of desktops based on some events like alerts on a program or a web page in browser. How could I disable this logical change? Note: I'...
249
votes
3answers
166k views

What is the “rootless” feature in El Capitan, really?

I have just learned about the "Rootless" feature in El Capitan, and I am hearing things like "There is no root user", "Nothing can modify /System" and "The world will end because we can't get root". ...
245
votes
7answers
133k views

Make the green full screen window icon on Yosemite maximize windows

On Mac OS X Yosemite the green icon in every window: is by default used to make the application full screen. How do I make it work the same way as in previous versions of Mac OS X, i.e. to maximize ...
244
votes
8answers
708k views

How can I manually delete old backups to free space for Time Machine?

I use a Time Capsule for backup and now I want the drive to back up data from an extra Mac. But the drive is filled up with old backups from Mac 1. There simply is not enough space available for the ...
241
votes
16answers
587k views

How to combine two images into one on a Mac?

Say I have two photos (or any images), for example with the following dimensions: +----------+ +----------+ | | | | | | | | |320 x 428 | and |...
213
votes
6answers
95k views

Applications Don't Show Up in Spotlight

Spotlight has stopped showing any results for my Applications. I've tried reindexing and removing the index so it rebuilds it. No change. I've tried adding Applications to the Privacy tab and removing ...
212
votes
13answers
204k 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.)
185
votes
5answers
353k views

Can I open files in TextEdit from the Terminal in Mac OS X?

I frequently find that a Terminal command to open a file in TextEdit would be very handy. Does such a command exist on Mac OS X?
185
votes
1answer
241k views

How do I launch Finder from terminal or command line [duplicate]

I use command line a lot, like most programmers. I want to be able to launch Finder, Safari or any other application for that matter from command line e.g. finder . where it will start Finder ...
182
votes
5answers
104k views

How to fix brew after OSX upgrade to Yosemite?

I faced some issue with Homebrew. I upgraded to Yosemite. After the upgrade, homebrew seems to be broken. I would run any brew command and get this error /usr/local/bin/brew: /usr/local/Library/brew....
181
votes
239answers
46k views

Which OS X Applications do you find indispensable?

Please Search Prior To Posting! There are many applications already listed. In all likelihood, this includes the one you are thinking of. Please check the existing answers to avoid duplicates, and ...
180
votes
26answers
59k views

Is there a quick way to lock my Mac?

On Windows you can hit the keys Windows+L to lock your computer if you step away. I don't want to have to remember if sleep currently asks for a password, if there is a time out where my screen isn't ...
178
votes
107answers
54k views

What tiny thing in Lion makes you smile or has caught you off guard?

I would like to call for a place to list some little things that surprise you about Lion. There are so many articles and lists of all the new features with information overload, I would rather focus ...
178
votes
14answers
80k views

Keyboard shortcut for restoring applications from the Mac OS X Dock?

Is there a keyboard shortcut to restore a minimised application window from the Dock? Almost all Apple Mac OS X applications respond to the Apple + M command which minimises the current application ...
174
votes
6answers
393k views

How do I disable System Integrity Protection (SIP) AKA “rootless” on macOs [OS X]

Apple has introduced System Integrity Protection, also known as "rootless", with OS X 10.11, El Capitan. I understand this is a step for general protection against malware but as a developer I need ...
173
votes
8answers
291k views

Can I get the CPU temperature and fan speed from the command line in OS X?

Is there a command I can run from the command line in OS X to get the current CPU temperature and/or the fan speed(s)? To be more specific, I'd like to be able to get the same info available in the ...
173
votes
12answers
225k views

Why are dot underscore ._ files created, and how can I avoid them?

I am using different operating systems on different machines on different locations. I am using a USB flash disk to keep my files (source codes etc.). I am new to Mac OS X and now I realize there are ...
170
votes
3answers
92k views

How can I make Safari show the URL when I hover over a link?

Safari 5.0.1 on OS X Snow Leopard (10.6) doesn't seem to have any status bar in which the URL of a link shows when the user moves the cursor over a link (without clicking) All other browsers I've ...
160
votes
11answers
325k views

Where can I find the installed package path via brew

I installed some packages via brew. But I can not find where they are. I can not get access by typing hping on terminal % brew install hping (git)-[master] Warning: hping-3.20051105 already ...
155
votes
5answers
41k views

Task Switcher moves to non-primary display on Mavericks-Catalina

I'm running OS X on a computer with two displays that are not mirrored. One of them is configured as the primary display using the menu bar location in Displays System Preference, pre-Mavericks style....
152
votes
5answers
64k views

Open Finder window from current Terminal location?

If I am in a specific path in a Terminal window, how can I open that same window in a new Finder window? Note: This is the opposite of opening a Terminal from Finder.
151
votes
8answers
123k views

How to simulate slow internet connections on the mac

What's a good software solution to slow down internet connections on the mac for testing and simulations? My primary need is when testing code in the iPhone / iOS simulator, so slowing down the ...
150
votes
10answers
169k 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. ...
148
votes
14answers
67k views

How to move files to trash from command line?

I do a lot of terminal work, and today had the experience of typing rm fileInQuestion.txt Before finding out that I did actually need fileInQuestion.txt. If I'd deleted in the GUI then I would have ...
147
votes
4answers
91k views

Need a cli to check the sha256 hash of a file

To check the sha1 of a file I would use openssl sha1 <file> I'm not sure what to use to check the sha256 hash of the file however, what would you recommend?
145
votes
23answers
309k views

How to create a text file in a folder

In windows I right click and then there is an option to create a text file. How to do so in mac?
140
votes
11answers
293k views

How can I mount an ext4 file system on OS X?

Is there a safe, stable application for reading from and writing to ext4 file systems on Mac OS X? If not, what's the best way to access the contents of an ext4 file system on Mac OS&...
137
votes
8answers
194k views

How can I find color codes on Mac?

I used to find color codes which I want to use for texts or background colors on htmls with color edit tool of MS paint which pre-installed on Windows. But now I use Mac instead of Windows. How can I ...
137
votes
2answers
197k views

How to investigate high kernel task memory usage?

I was using my MacBook Pro (with 16GB of RAM) as usual and out of blue I've this popup that: Your system has run out of application memory. To avoid problems with your computer, quit any applications ...
136
votes
14answers
157k views

Is there a keyboard shortcut to move a window from one monitor to another?

Is there a free app that I can use to move a window from one monitor to the other monitor (assuming only two monitors) via the keyboard? I shouldn't have to use the mouse at all (e.g., for selecting ...
136
votes
11answers
88k views

Why is it not possible to use the “cut” command to manipulate a file in the Finder?

On OS X 10.6 (Snow Leopard), I don't seem to be able to us the "Cut" command on a file in the Finder, like you can do in Windows Explorer on Microsoft Windows. (In Windows, once you select a file and "...
135
votes
4answers
456k views

Using The Terminal Command to Shutdown, Restart and Sleep My Mac?

I'm getting more interested in using Terminal as an alternative way to address solutions on my Mac. I have seen this question entitled "Is there a better way to shutdown/restart OSX?". I would ...
135
votes
6answers
129k views

How to turn off all animations on OS X

Is it possible to turn off all animations on OS X?
133
votes
2answers
296k views

List USB devices on OSX command line

Can I List USB devices on OSX - similar to lsusb on Linux. I know I can access from System Information.
133
votes
20answers
151k views

How to stop OS X from writing Spotlight and Trash files to memory cards and USB sticks?

When plugging a USB stick into a Mac, OS X creates a number of hidden files on the stick, including a Spotlight index and Trash folder. Example from the terminal for a USB stick "Untitled": $ ls -a /...

1
2 3 4 5
506