app2dmg() {
  if [ $# -ne 3 ]; then
    echo 'usage: app2dmg <sourcefolder> <volname> <image.dmg>'
  else
    hdiutil create -srcFolder "$1" -format UDZO -volname "$2" -uid 99 -gid 99 -mode 555 -noscrub "$3"
  fi
}
BASH_SILENCE_DEPRECATION_WARNING=1
PATH="${PATH}:/opt/local/bin:/opt/local/sbin:/Library/Frameworks/Python.framework/Versions/3.8/bin"
HISTFILESIZE=1000
PS1='\u@\h:\w \$ '
export BASH_SILENCE_DEPRECATION_WARNING PATH HISTFILESIZE PS1
sw_vers