pgrep instead of ps

bin/test_static_page.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+
 PORT=8080
 python3 -m http.server $PORT --directory public/ &
 
@@ -8,7 +9,7 @@ SERVER_PID=$!
 sleep 2
 
 # Check if the server is running
-if ! ps -p $SERVER_PID > /dev/null; then
+if ! pgrep -P $SERVER_PID > /dev/null; then
     echo "HTTP server failed to start."
     exit 1
 fi