The Z shell (Zsh) is a Unix shell that can be used as an interactive login shell and as a command interpreter for shell scripting. The software was initially released in 1990.
Web page: zsh.org
PDF (Portable Document Format) is a commonly used document format created by Adobe. Creating a PDF of a keyboard shortcut list may make it easier to print, quicker to open, and view offline. The PDF output is also without any ads, it's just the basic list presented in two or three columns.
Printing notice: Please consider environmental effect before printing on a paper.