- The <STRONG>-n</STRONG> option produces a list of each capability that is
- in none of the given entries. If no <EM>termnames</EM> are given,
- the environment variable <STRONG>TERM</STRONG> will be used for both of the
- <EM>termnames</EM>. This can be used as a quick check to see if
- anything was left out of a description.
+ Use the <STRONG>-q</STRONG> option to show the distinction between <EM>absent</EM>
+ and <EM>cancelled</EM> capabilities.
+
+ These options produce a list which you can use to compare
+ two or more terminal descriptions:
+
+ <STRONG>-d</STRONG> produces a list of each capability that is <EM>different</EM>
+ between two entries. Each item in the list shows ":"
+ after the capability name, followed by the capability
+ values, separated by a comma.
+
+ <STRONG>-c</STRONG> produces a list of each capability that is <EM>common</EM>
+ between two or more entries. Missing capabilities
+ are ignored. Each item in the list shows "=" after
+ the capability name, followed by the capability
+ value.
+
+ The <STRONG>-u</STRONG> option provides a related output, showing the
+ first terminal description rewritten to use the sec-
+ ond as a building block via the "use=" clause.
+
+ <STRONG>-n</STRONG> produces a list of each capability that is in <EM>none</EM> of
+ the given entries. Each item in the list shows "!"
+ before the capability name.
+
+ Normally only the conventional capabilities are
+ shown. Use the <STRONG>-x</STRONG> option to add the BSD-compatibil-
+ ity capabilities (names prefixed with "OT").
+
+ If no <EM>termnames</EM> are given, <STRONG>infocmp</STRONG> uses the environ-
+ ment variable <STRONG>TERM</STRONG> for each of the <EM>termnames</EM>.