巧匠Developer Cheatsheet

Zsh Cheatsheet - Shell Configuration

After switching to Zsh, what actually speeds you up day to day is completion, history search aliases, and a custom prompt. This table covers the high-frequency .zshrc settings and common oh-my-zsh plugins and themes; back up .zshrc before editing so you always have a way back.

SysOps·37 commands·Last updated 2026-07-21
zshshellTerminaloh-my-zsh

Basic Setup 5

chsh -s $(which zsh)
Switch the default shell to zsh
source ~/.zshrc
Reload the config
echo $SHELL
Show the current shell
setopt AUTO_CD
Type a dir name to cd (no cd needed)
setopt CORRECT
Suggest corrections on typo

Variables & Arrays 6

NAME="value"
Define a variable (no spaces around =)
arr=(a b c)
Define an array (zsh indexes from 1)
echo $arr[1]
Access the first array element
echo ${arr[@]}
Access all array elements
${#arr[@]}
Get array length
typeset -A dict\ndict[key]=value
Define an associative array (hash)

Globbing & Expansion 6

**/*.js
Recursively match .js in subdirs
*.{js,ts}
Brace expansion, multiple suffixes
*(.)
Match regular files only (glob qualifier)
*(/)
Match directories only
*(om[1])
The most recently modified file
=ls
= expands to the command's full path

Functions & Completion 4

function name() { ... }
Define a function
alias ll="ls -la"
Set an alias
autoload -Uz compinit && compinit
Initialize the completion system
compdef _git g=git
Reuse git completion for alias g

Prompt Customization 5

PROMPT='%n@%m %~ %# '
user@host path prompt
%n / %m / %M
username / short host / full host
%~ / %d
current dir (~) / absolute path
RPROMPT="%T"
Right prompt shows current time
%T / %D / %W
24h time / date / month-day-year

oh-my-zsh & Plugins 5

plugins=(git zsh-autosuggestions zsh-syntax-highlighting)
Enable a plugin list
ZSH_THEME="robbyrussell"
Set a theme (random to rotate)
zsh-autosuggestions
Autosuggest completions (accept with ->)
zsh-syntax-highlighting
Syntax highlighting (red = error)
extract file.tar.gz
extract plugin auto-detects archive format

Tips

  • Install oh-my-zsh: sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
  • zsh-autosuggestions needs a separate install (git clone into $ZSH_CUSTOM/plugins).
  • setopt AUTO_CD lets you cd by typing a dir name.
  • Bind up/down arrows to prefix history search via bindkey.
  • zsh arrays start at 1 (bash starts at 0) - mind this when porting scripts.
  • ZDOTDIR changes the config dir, handy for isolated configs.

Related Cheatsheets

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Official References

Each command links to its official documentation below, so you can verify the latest usage and read deeper.

Maintained by LaoHand

Publicly updated on Jul 21, 2026, continuously proofread against official docs.

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