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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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How to uninstall Python 2.7 on a Mac OS X 10.6.4?

I want to completely remove Python 2.7 from my Mac OS X 10.6.4. I managed to remove the entry from the PATH variable by reverting my .bash_profile. But I also want to remove all directories, files, symlinks, and entries that got installed by the…
Jan Deinhard
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How to run CocoaPods on Apple Silicon (M1)

I have a Flutter project that I'm trying to run on iOS. It runs normally on my Intel-based Mac, but on my new Apple Silicon-based M1 Mac it fails to install pods. LoadError - dlsym(0x7f8926035eb0, Init_ffi_c): symbol not found -…
Jacobo Koenig
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15 answers

How to discover number of *logical* cores on Mac OS X?

How can you tell, from the command line, how many cores are on the machine when you're running Mac OS X? On Linux, I use: x=$(awk '/^processor/ {++n} END {print n+1}' /proc/cpuinfo) It's not perfect, but it's close. This is intended to get fed to…
Mike DeSimone
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435
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13 answers

sed command with -i option failing on Mac, but works on Linux

I've successfully used the following sed command to search/replace text in Linux: sed -i 's/old_link/new_link/g' * However, when I try it on my Mac OS X, I get: "command c expects \ followed by text" I thought my Mac runs a normal BASH shell. …
Yarin
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434
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20 answers

How can I open the Atom editor from the command line in OS X?

I have the Atom editor and was wondering how you can open a file or folder from the terminal in Atom. I am using a Mac. I am looking for a way to do this: atom . (opens folder) atom file.js (opens file) atom (opens editor) Is this possible and…
Anders
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14 answers

OS X Bash, 'watch' command

I'm looking for the best way to duplicate the Linux 'watch' command on Mac OS X. I'd like to run a command every few seconds to pattern match on the contents of an output file using 'tail' and 'sed'. What's my best option on a Mac, and can it be…
joseph.hainline
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17 answers

How to set NODE_ENV to production/development in OS X

For use in express.js environments. Any suggestions?
Mark Nguyen
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414
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35 answers

You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory. (mac user)

below is what I need to do. To run the specs, you'll need to install RSpec. First, run gem install bundler in the root directory of your project. Then, run bundle install. To run a single spec file, run a command like this: bundle exec rspec…
user9426236
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410
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17 answers

brew install mysql on macOS

I'm trying to setup up MySQL on mac os 10.6 using Homebrew by brew install mysql 5.1.52. Everything goes well and I am also successful with the mysql_install_db. However when I try to connect to the server…
nikola
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19 answers

Brew doctor says: "Warning: /usr/local/include isn't writable."

Brew doctor says: Warning: /usr/local/include isn't writable. This can happen if you "sudo make install" software that isn't managed by Homebrew. If a brew tries to write a header file to this directory, the install will fail during the link…
gaggina
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403
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3 answers

What does brew tap mean?

Sometimes I see articles saying command of brew tap before brew install something. I am wondering what does tap mean? And why must I run tap before install?
Zhang Buzz
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40 answers

dyld: Library not loaded ... Reason: Image not found

When trying to run an executable I've been sent in Mac OS X, I get the following error dyld: Library not loaded: libboost_atomic.dylib Referenced from: /Users/"Directory my executable is in" Reason: image not found Trace/BPT trap:5 I have…
rwolst
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402
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5 answers

What is path of JDK on Mac ?

Im using Mac only at work and I need to set JAVA_HOME to proper path of JDK. I downloaded JDK, installed it and now I can't find it anywhere. I was looking at the internet for the solution, but there is no folder Libraries/Java.
filipp.kowalski
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397
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18 answers

View tabular file such as CSV from command line

Anyone know of a command-line CSV viewer for Linux/OS X? I'm thinking of something like less but that spaces out the columns in a more readable way. (I'd be fine with opening it with OpenOffice Calc or Excel, but that's way too overpowered for…
Benjamin Oakes
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397
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27 answers

Installed Java 7 on Mac OS X but Terminal is still using version 6

I've installed JDK 7u7 downloaded from oracle's website. But after installation, the terminal is still showing java version 6 $java -version java version "1.6.0_35" Java(TM) SE Runtime Environment (build 1.6.0_35-b10-428-11M3811) Java HotSpot(TM)…
Yang
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