Future versions of macOS won’t include Python 2.7. This version is included in macOS for compatibility with legacy software. The system was shipping Python 2.7, and Apple now says: “Use of Python 2.7 isn’t recommended.
Create a shell script for mac os x software#
If your software depends on scripting languages, it’s recommended that you bundle the runtime within the app.Īpple also writes that Xcode’s debugger, LLDB, has new Python Scripting based on Python 3.
Create a shell script for mac os x install#
In future versions of macOS, scripting language runtimes won’t be available by default, and may require you to install an additional package. Scripting language runtimes such as Python, Ruby, and Perl are included in macOS for compatibility with legacy software. About Xcode 11 beta, which launches with Catalina, Apple has this to say: Spelling errors are caught, and the new shell for macOS Catalina will know cd/donloads was really cd/downloads.īut there’s one more thing to consider: scripting. Zsh also has recursive path expansion, so typing u/lo/b expands automatically to user/local/bin. Zsh can help it supports automatic change-directory commands, which helps users find files buried deep in a hierarchal tree faster. While fairly basic, Terminal can be intimidating. It’s also a touch more user-friendly, which is probably one reason Apple moved to it. Scripts that are written for Bash can be used in Zsh, but likely require a shebang line like #!/bin/bash or #!bin/bash/sh to execute properly. (If you want to give it a shot, head into the Apple Menu > System Preferences > Users & Groups > click the lock icon > control-click your name in the list of users > Advanced Options > Login shell > Zsh > OK.) Zsh and Bash are highly compatible, though Apple cautions us to “be aware that scripts that make use of bashisms may not work properly.” Still, it’s unlikely any changes made in Terminal with Bash would see a system-crashing instance when you switch to Zsh. In most cases, it won’t make a difference. It simply says Zsh will be the new default shell for “newly created user accounts,” and that Bash will remain the defualt shell for macOS Mojave and earlier. Microsoft recently refreshed its Terminal app with a heavy dollop of Bash support.Īpple’s documentation doesn’t provide much insight on why it’s making the switch. Bash, which is short for “Bourne-again shell,” is the most common shell script. Currently, macOS users have Bash as the default, so why did Apple switch to Zsh… and will it matter?īoth Zsh and Bash are iterations on the Bourne Shell, which was the original command-line interpreter for Unix-based operating systems. When macOS 10.15 Catalina lands this Fall, it will have a new default shell in Zsh.
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