cd /var/log

echo "start now" > youraccount.pythonanywhere.com.access.log

echo "start now" > youraccount.pythonanywhere.com.error.log

echo "start now" > youraccount.pythonanywhere.com.server.log

You can put all that in a file. Copy those 4 lines

cd $HOME

nano clearlogs.sh

paste

ctrl-0

ctrl-x

chmod +x clearlogs.sh

To do it:

./clearlogs.sh