# The Z Shell Manual

### Version 5.9

### Updated May 14, 2022

Original documentation by Paul Falstad

This is a texinfo version of the documentation for the Z Shell, originally by Paul Falstad.

Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.

Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided also that the entire resulting derived work is distributed under the terms of a permission notice identical to this one.

Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions.

# The Z Shell Manual ¶

This Info file documents Zsh, a freely available UNIX command interpreter (shell), which of the standard shells most closely resembles the Korn shell (ksh), although it is not completely compatible. Zsh is able to emulate POSIX shells, but its default mode is not POSIX compatible, either.

Version 5.9, last updated May 14, 2022.

This document was generated on February 2, 2026 using texi2any.

Zsh version 5.9, released on May 14, 2022.