title: Grep command with multiple patterns
body: <p>Hi i am currently use this to grep:</p>
  
  <pre><code>$ grep -nri --exclude-dir=DELIVERY_REL "xxxxxx\.h" --colour --include=*.{c,h}
  </code></pre>
  
  <p>I am trying to fine tune the search results of my grep to include multiple patterns. I have tried multiple ways recommended on stack-overflow on similar questions, but to no avail. What i need to grep: </p>
  
  <pre><code>xxxxxx.h and #include or xxxxxx.h and # include (with a space)
  </code></pre>