Set all iOS simulators to US locale

setLocaleSimulators.sh

#!/usr/bin/env bash

set -e

# Get all simulator UDIDs
SIM_UDIDS=$(xcrun simctl list devices | grep -Eo '[A-F0-9-]{36}')

for UDID in $SIM_UDIDS; do
  echo "Setting locale for simulator $UDID ..."
  # Boot the simulator if not already booted
  xcrun simctl bootstatus "$UDID" -b || true

  # Set locale and language
  xcrun simctl spawn "$UDID" defaults write -g AppleLocale en_US
  xcrun simctl spawn "$UDID" defaults write -g AppleLanguages -array en-US

  # Optional: shutdown the simulator after setting
  xcrun simctl shutdown "$UDID"
done

echo "Locale set to en-US for all simulators."