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autoload — Mark functions for lazy loading in Zsh. Functions are not loaded into memory until first called, imp

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the autoload command: Mark functions for lazy loading in Zsh. Functions are not loaded into memory until first called, improving shell startup time. More information: <https://zsh.sourceforge.io/Doc/Release/Shell-Builtin-Commands.html>.

Solution

autoload — Mark functions for lazy loading in Zsh. Functions are not loaded into memory until first called, improving shell startup time. More information: <https://zsh.sourceforge.io/Doc/Release/Shell-Builtin-Commands.html>.

Autoload a function by name:

autoload {{function_name}}

Autoload a function and immediately resolve its definition:

autoload +X {{function_name}}

Autoload a function using Zsh-style autoloading (recommended):

autoload -Uz {{function_name}}

Make functions from a directory available by adding it to fpath:

fpath=({{path/to/functions_dir}} $fpath) && autoload -Uz {{function_name}}

Autoload the Zsh completion system:

autoload -Uz compinit && compinit

Autoload and use the add-zsh-hook utility:

autoload -Uz add-zsh-hook

Code Snippets

Autoload a function by name

autoload {{function_name}}

Autoload a function and immediately resolve its definition

autoload +X {{function_name}}

Autoload a function using Zsh-style autoloading (recommended)

autoload -Uz {{function_name}}

Make functions from a directory available by adding it to `fpath`

fpath=({{path/to/functions_dir}} $fpath) && autoload -Uz {{function_name}}

Autoload the Zsh completion system

autoload -Uz compinit && compinit

Context

tldr-pages: common/autoload

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