when i input a line in a terminal box it asks me my password but it wont let me

When you type your password when you are using sudo you won't get any feedback. Just type your password and hit ENTER

Please read this:

https://help.ubuntu.com/community/RootSudo

The point is when i put a line of code in a terminal and hit enter i get a request for my password but it wont allow me to input the password there is a cursor but i press a letter but nothing happens j futter

Sent from Samsung Mobile on O2-------- Original message --------From: actionparsnip <email address hidden> Date: 23/12/2017 16:42 (GMT+00:00) To: <email address hidden> Subject: Re: [Question #662151]: when i input a line in a terminal box it asks
  me my password but it wont let me
Your question #662151 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/662151

    Status: Open => Answered

actionparsnip proposed the following answer:
When you type your password when you are using sudo you won't get any
feedback. Just type your password and hit ENTER

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Just type your password and hit ENTER. Your password is being accepted as input