title: Escape $ dollar sign from linux/Unix argument
body: <p>Hi all I have one linux script which takes parameter from datastage.</p>
  <p>In my script
  Variable password=$4 ($4 value from datastage which is my db password)</p>
  <p>And my db password consists of 'abc$' sign in it.
  When I echo $pass or $4 the output is abc which is causing problem.
  Is there anyway to escape $ sign in arguments.
  I want output as abc$</p>