This script extracts an app from an Xcode .xcarchive, alerts the user, kills any running versions, moves it to /Applications, re-signs it with the specified Developer ID, and then launches the newly signed app.

xcarchive-move-and-sign.sh

FILE=`basename "$@" .xcarchive`
PARENT=`dirname "$@"`

ditto "$@"/Products/Applications/ $PARENT/.
printf "\a"

# List all .app directories in $PARENT
for app_path in "$PARENT"/*.app; do
  # Extract the app name (basename without .app extension)
  app_name=$(basename "$app_path" .app)

  pkill -f $app_name

  # Remove the app from /Applications
  rm -rf "/Applications/$app_name.app"
  
  mv "$PARENT/$app_name.app" "/Applications/"

  # Code signing the application
  codesign --deep --force --verify --verbose --sign "Developer ID Application: Your Name (A1B234CD56)" "/Applications/$app_name.app"

  # Open the app
  open "/Applications/$app_name.app"
done