title: Command not found error in c shell
body: <p>I have the following script:</p>
  
  <pre><code>set blah1 = 12743
  set sid1 = `"ps -p $blah1 -o sid"`
  echo "$sid1"
  </code></pre>
  
  <p>What I expect that will happen is that $blah1 will be replaced with it's value and then the command will be executed with it's value placed in sid1. Instead, I'm getting an error: </p>
  
  <pre><code>ps -p 12743 -o sid: command not found. 
  </code></pre>
  
  <p>What's my mistake? </p>
  
  <p>Thanks.</p>