Salesforce Authentication Failing

Question

I am trying to use OAuth authentication to get the Salesforce Authentication Token, so I referred wiki docs, but after getting authorization code, when I make a Post request

Answer 1

I was banging my head against the desk trying to get this to work. Turns out my issue was copying and pasting, which messed up the " character. I went and manually typed " pasted that into the command line and then it worked.