if [[ -z "$1" ]]; then
echo "Run with parameters: essential, nice, cask_essential, or cask_nice"
else
if command -v brew &> /dev/null; then
command_name="brew"
if [[ -z "$1" ]]; then
echo "Run with parameters: essential, nice, cask_essential, or cask_nice"
else
if command -v brew &> /dev/null; then
command_name="brew"