MacOS network location switch based on Wifi SSID

com.user.wifi-location-switch.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.user.wifi-location-switch</string>

    <key>ProgramArguments</key>
    <array>
      <string>/Users/<REPLACE WITH YOUR USERNAME>/wifi-location-switch.sh</string>
    </array>

    <key>WatchPaths</key>
    <array>
      <string>/Library/Preferences/SystemConfiguration/</string>
    </array>

    <key>RunAtLoad</key>
    <true/>
  </dict>
</plist>

MacOS network location switch based on Wifi SSID.md

Use shell script and launch agent to change macOS network location based on Wifi SSID.

wifi-location-switch.sh

#!/bin/zsh

# Define Wi-Fi and Locations
SPECIAL_WIFI="Specific Wifi SSID"
SPECIAL_LOCATION="TargetLocation"
DEFAULT_LOCATION="Automatic"

# Get the current Wi-Fi network
CURRENT_WIFI=$(ipconfig getsummary en0 | awk -F ' SSID : '  '/ SSID : / {print $2}')
CURRENT_LOCATION=$(scselect | awk '/\*/ {print $2}')

if [[ "$CURRENT_WIFI" == "$SPECIAL_WIFI" && "$CURRENT_LOCATION" != "$SPECIAL_LOCATION" ]]; then
    echo "Switching to $SPECIAL_LOCATION"
    scselect "$SPECIAL_LOCATION"
elif [[ "$CURRENT_WIFI" != "$SPECIAL_WIFI" && "$CURRENT_LOCATION" != "$DEFAULT_LOCATION" ]]; then
    echo "Switching to $DEFAULT_LOCATION"
    scselect "$DEFAULT_LOCATION"
fi