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Questions tagged [macos]

macOS (formerly known as OS X or Mac OS X) is the desktop operating system from Apple, found on Macintosh computers. Use this tag only if your question relates to using macOS APIs or macOS-specific behavior, not because you happen to run your code on macOS. Questions relating to using or troubleshooting macOS are off-topic and belong in the Ask Different community instead.

macOS (formerly known as OS X until 2016 and Mac OS X until 2012) is the desktop operating system from Apple Inc., found on Macintosh computers.

Use this tag for questions about writing and debugging programs on macOS. Questions relating to using or troubleshooting macOS are off-topic (use apple.stackexchange.com instead).

macOS() consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD (), and additional frameworks (written in C (), C++ (), Objective-C () and Swift () providing user interface and application-level services.

It was the successor to Mac OS 9. macOS is based upon the NeXTSTEP and OpenStep operating systems developed in the 1980s and 1990s by NeXT Inc., which Apple purchased in 1996.

Versions

  • Current macOS Big Sur
  • macOS Catalina 10.15.1
  • macOS Mojave 10.14.1
  • macOS High Sierra (10.13)
  • macOS Sierra (10.12)
  • OS X El Capitan (10.11)
  • OS X Yosemite (10.10)
  • OS X Mavericks (10.9)
  • OS X Mountain Lion (10.8)
  • OS X Lion (10.7)
  • OS X Snow Leopard (10.6)
  • OS X Leopard (10.5)
  • OS X Tiger (10.4)
  • OS X Panther (10.3)
  • OS X Jaguar (10.2)
  • OS X Cheetah (10.1)
  • OS X Puma (10.0)

More information:

116456 questions
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lose vim colorscheme in tmux mode

I'm running iterm2 and when I'm in tmux mode the colorscheme I have set in vim does not show up. Only the color scheme I've set in iterm. If I run vim from shell the colorscheme appears correct - its only when I'm in tmux mode. I've tried setting…
tristen
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Force DOM redraw/refresh on Chrome/Mac

Every once in a while, Chrome will render perfectly valid HTML/CSS incorrectly or not at all. Digging in through the DOM inspector is often enough to get it to realize the error of its ways and redraw correctly, so it's provably the case that the…
Jason Kester
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252
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8 answers

In-place edits with sed on OS X

I'd like edit a file with sed on OS X. I'm using the following command: sed 's/oldword/newword/' file.txt The output is sent to the terminal. file.txt is not modified. The changes are saved to file2.txt with this command: sed…
SundayMonday
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MobileDevice.pkg untrusted, cannot open Xcode after OS X update

After an automatic update of macOS v10.15 (Catalina), I am unable to open Xcode. Xcode prompts me to install additional components but the installation fails because of MobileDevice.pkg (Applications/Xcode.app/Contents/Resources/Packages) I have…
eja08
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How can I use xargs to copy files that have spaces and quotes in their names?

I'm trying to copy a bunch of files below a directory and a number of the files have spaces and single-quotes in their names. When I try to string together find and grep with xargs, I get the following error: find .|grep "FooBar"|xargs -I{} cp "{}"…
Drew Stephens
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251
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26 answers

Broken references in Virtualenvs

I recently installed a bunch of dotfiles on my Mac along with some other applications (I changed to iTerm instead of Terminal, and Sublime as my default text editor) but ever since, all my virtual environments have stopped working, although their…
oxtay
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250
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16 answers

How do I create a Bash alias?

I'm on OSX and I need to put something like this, alias blah="/usr/bin/blah" in a config file but I don't know where the config file is.
fancy
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21 answers

Could not install packages due to an EnvironmentError: [Errno 13]

In my MacOS Mojave terminal I wanted to install a python package with pip. At the end it says: You are using pip version 10.0.1, however version 18.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command. So I…
Adler
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24 answers

How do you stop MySQL on a Mac OS install?

I installed MySQL via MacPorts. What is the command I need to stop the server (I need to test how my application behave when MySQL is dead)?
Laurie Young
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21 answers

(Mac) -bash: __git_ps1: command not found

I'm trying to change my command promt in terminal. I keep getting the error: -bash: __git_ps1: command not found I've tried it just by typing it into the terminal as is: __git_ps1. I've also tried it out in the .bash_profile if [ -f…
Geoff
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245
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2 answers

How can I increase the cursor speed in terminal?

How can I increase the cursor speed in terminal? I have Mac OS X by the way. It would also be interesting to know it for Linux. I don't know what I should search for in Google (or what you like).
classic_programmer
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245
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24 answers

Cannot install Lxml on Mac OS X 10.9

I want to install Lxml so I can then install Scrapy. When I updated my Mac today it wouldn't let me reinstall lxml, I get the following error: In file included from…
David O'Regan
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244
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26 answers

node and Error: EMFILE, too many open files

For some days I have searched for a working solution to an error Error: EMFILE, too many open files It seems that many people have the same problem. The usual answer involves increasing the number of file descriptors. So, I've tried this: sysctl…
xaverras
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18 answers

How can I set my default shell on a Mac, e.g. to Fish?

I do not like to retype fish every time I start terminal. I want Fish on by default. How can I set the Fish shell as my default shell on a Mac?
Léo Léopold Hertz 준영
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4 answers

What is the difference between MacVim and regular Vim?

I'm reasonably new to OS X, but I'm familiar with Vim from using it in various *nix systems. I've seen many people recommend running MacVim over Vim in the terminal. Can anyone tell me what differences there are between MacVim and regular Vim?
Mark Costello
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