sharif_id.sh

read -p "Enter Sharif ID: " username
stty -echo
read -p "Enter password: " password
stty echo

echo "\nPlease wait" ...

if [ -z "$username" ]
then
      # empty username
      curl -d "" -X POST https://net2.sharif.edu/logout 2>/dev/null | sed -z -e 's/<[^>]*>//g' | tr -s ' ' | sed '/^\s*$/d'
else
      curl -d "username=$username&password=$password" -X POST https://net2.sharif.edu/login 2>/dev/null | sed -z -e 's/<[^>]*>//g' | tr -s ' ' | sed '/^\s*$/d'
fi