Zsh is already the default shell of macOS Catalina. As we configure more and more plugins for zsh, the startup speed of zsh becomes slower and slower. This article will introduce how to measure and optimize the startup speed of Zsh.

The previous article said that the Raspberry Pi, which has been idle for more than a year, has been built to build a running environment, so how can we face such an ugly Bash, of course, it must be replaced by zsh.