Update run.sh (Significant-Gravitas#3752)

Co-authored-by: Richard Beales <[email protected]>

run.sh

@@ -1,9 +1,25 @@
 #!/bin/bash
-python scripts/check_requirements.py requirements.txt
+
+function find_python_command() {
+    if command -v python &> /dev/null
+    then
+        echo "python"
+    elif command -v python3 &> /dev/null
+    then
+        echo "python3"
+    else
+        echo "Python not found. Please install Python."
+        exit 1
+    fi
+}
+
+PYTHON_CMD=$(find_python_command)
+
+$PYTHON_CMD scripts/check_requirements.py requirements.txt
 if [ $? -eq 1 ]
 then
     echo Installing missing packages...
-    pip install -r requirements.txt
+    $PYTHON_CMD -m pip install -r requirements.txt
 fi
-python -m autogpt $@
-read -p "Press any key to continue..."
+$PYTHON_CMD -m autogpt $@
+read -p "Press any key to continue..."