what would shellcheck do

.github/workflows/lint.yml

@@ -1,14 +1,10 @@
 name: Lint
 
-on:
-  push:
-    branches:
-      - master
+on: [push, pull_request]
 
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: azohra/shell-linter@master
-        continue-on-error: true

install.sh

@@ -5,9 +5,9 @@ set -e
 echo "👋  Deep breaths, everything will (probably) be fine!"
 
 # Set up symbolic links for ZSH and Git pointing to this cloned repo
-ln -sf $HOME/.dotfiles/zsh/.zshrc $HOME/.zshrc
-ln -sf $HOME/.dotfiles/git/.gitconfig $HOME/.gitconfig
-ln -sf $HOME/.dotfiles/git/.gitignore_global $HOME/.gitignore_global
+ln -sf "$HOME"/.dotfiles/zsh/.zshrc "$HOME"/.zshrc
+ln -sf "$HOME"/.dotfiles/git/.gitconfig "$HOME"/.gitconfig
+ln -sf "$HOME"/.dotfiles/git/.gitignore_global "$HOME"/.gitignore_global
 
 # Get Oh My ZSH up and running
 if [ ! -e ~/.oh-my-zsh ]; then
@@ -15,7 +15,8 @@ if [ ! -e ~/.oh-my-zsh ]; then
 fi
 
 # Make ZSH the default shell environment (maybe unnecessary on Catalina?)
-chsh -s $(which zsh)
+# shellcheck disable=SC2230
+chsh -s "$(which zsh)"
 
 if [ "$(uname)" == "Darwin" ]; then
   # shellcheck disable=SC1091

macos/macos.sh

@@ -11,7 +11,8 @@ sudo softwareupdate --install --all
 
 # This whole thing kinda hinges on having Homebrew...
 # Check for it and install from GitHub if it's not there
-if test ! $(which brew); then
+# shellcheck disable=SC2230
+if test ! "$(which brew)"; then
   /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
 fi