ZSH

the Z shell, the default on Mac OS since 10.15 Catalina

Run below install much needed good default config oh my zsh:

sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

Mostly same shell as bash but also:

  • Automatic cd: Just type the name of the directory( setopt auto_cd)

  • Recursive path expansion: For example “/u/lo/b” expands to “/usr/local/bin”

  • Spelling correction and approximate completion: If you make a minor mistake typing a directory name, ZSH will fix it for you

  • Plugin and theme support: ZSH includes many different plugin frameworks

  • Glob qualifiers allow matching files based on metadata such as their time stamp, their size, etc

  • alias to show all aliases

Breaking Differences

  • .zprofile is equivalent to .bash_profile and runs at login, including over SSH

  • .zshrc is equivalent to .bashrc and runs for each new Terminal session

  • You can't just copy files because you many configs need tweaking :(

  • Mostly same, but many minor differences in including prompt, key bindings, completion and command line history

Zsh Themes

ZSH_THEME="agnoster" 
ZSH_THEME="spaceship"
ZSH_THEME="af-magic"

Spaceship

https://github.com/denysdovhan/spaceship-prompt

  • Sigma/plugin on  master [$!?] is 📦 v1.0.0 via ⬢ v12.14.1

Agnoster

Add prompt_context(){} at bottom of .zshrc to get rid of machine text on local machine

Might need to install fonts if all the emojis don't print: echo "\ue0b0 \u00b1 \ue0a0 \u27a6 \u2718 \u26a1 \u2699"

git clone https://github.com/powerline/fonts.git --depth=1
cd fonts
./install.sh
cd ..
rm -rf fonts

And then go into iterm and change the font to one of the newly installed fonts(Courier for proline?)

Different Profiles

How I choose where to put a setting

  • if it is needed by a command run non-interactively(environment variables): .zshenv

  • if it should be updated on each new shell: .zshenv

  • if it runs a command which may take some time to complete: .zprofile

  • if it is related to interactive usage(alias): .zshrc

  • if it is a command to be run when the shell is fully setup: .zlogin

  • if it releases a resource acquired at login: .zlogout

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