>
<tr>
<td>
                  <p>
                    egrep
                  </p>
                </td>
<td>
                  <p>
                    Yes
                  </p>
                </td>
<td>
                  <p>
                    Specifies that the grammar recognized by the regular expression
                    engine is the same as that used by POSIX utility grep when given
                    the -E option in IEEE Std 1003.1-2001, Portable Operating System
                    Interface 