[macos] Add shellcheck

bash/.bash_logout

@@ -1,2 +1,3 @@
+# shellcheck shell=bash
 # ~/.bash_logout
 

bash/.bash_profile

@@ -1,3 +1,4 @@
+# shellcheck shell=bash
 # Get the aliases and functions
 if [ -f $HOME/.bashrc ]; then
 	source $HOME/.bashrc

bash/.bashrc

@@ -1,3 +1,4 @@
+# shellcheck shell=bash
 # .bashrc
 
 # Source global definitions

macos/.config/homebrew/Brewfile

@@ -27,6 +27,7 @@ brew "packer"
 brew "poetry"
 brew "python@3.14"
 brew "sass/sass/sass"
+brew "shellcheck"
 brew "smartmontools"
 brew "terraform-docs"
 brew "terraform-local"

shell-common/.config/shell-common/aliases.sh

@@ -1,3 +1,5 @@
+# shellcheck shell=bash
+
 # macOS aliases
 if [[ $(uname) == "Darwin" ]]; then
     alias ls="ls -FG"

shell-common/.config/shell-common/aws.sh

@@ -1,3 +1,5 @@
+# shellcheck shell=bash
+
 # Get the list of AWS profiles
 function awsprofiles() {
   profiles=$(aws --no-cli-pager configure list-profiles 2> /dev/null)

shell-common/.config/shell-common/exports.sh

@@ -1,3 +1,4 @@
+# shellcheck shell=bash
 # User specific environment
 
 # XDG Base Directories

shell-common/.config/shell-common/functions.sh

@@ -1,3 +1,5 @@
+# shellcheck shell=bash
+
 # Git pulls latest dotfiles
 function update-dotfiles() {
     local prevdir="$PWD"