get password bashfunction

password.bash

# prompts user to enter password 

promptpasswd()
{   
    if [ -n "$1" ]; then
        _getpasswd_var_option=$(printf "%s\\n" "$1" | tr '[:upper:]' '[:lower:]')
        printf "%s" "Enter your $_getpasswd_var_option password: "
        stty -echo
        read ${_getpasswd_var_option}passwd
        stty echo
        printf "\\n"
    else
        printf "%s" "Enter your password: "
        stty -echo
        read passwd
        stty echo
        printf "\\n"
    fi
}