![]() Bashisms in bash scripts break in zsh, so existing bash scripts need to be migrated and tested.Bash scripts break in Zsh (due to “bashisms”).zsh is better than bash/sh in several aspects.So install latest (parallel) version of Zsh and set. ![]() The version of zsh is likely obsolete.Apple already ships Z shell with macOS (as well as the sh shell interpreter) along with bash.After the change goes into effect, Bash will still be installed and you can still change the default back to Bash. The Apple announcement is about the default. PROTIP: Ignore fake news clickbait articles such as “Upcoming MacOS Catalina to Ditch Bash in Favour of Zsh” (from InfoQ), which is technically incorrect. TL DR SummaryīTW Shells are a command line interface (CLI) that allows users to interact with the computer’s operating system by typing rather than moving a mouse on a GUI (Graphical User Interface). This article presents a deep but hopefully succinct guided tour through Z shell usage and issues. Install latest Z Shell (zsh) using HomebrewĪt its developer conference on June 4, 2019, Apple stated that, beginning with the Fall 2019 Catalina version of macOS, Z shell (zsh) would replace Bash as the default shell command language interpreter.
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