Added description of switches.

diff --git a/man/nmh.man b/man/nmh.man
index ce0379686e002461394d24480199a5549d70637f..304a15ccf3f1b1d3276c0331661582890ffd3748 100644 (file)
--- a/man/nmh.man
+++ b/man/nmh.man
@@ -1,4 +1,4 @@
-.TH NMH %manext7% "February 21, 2014" "%nmhversion%"
+.TH NMH %manext7% "March 1, 2014" "%nmhversion%"

 .\"
 .\" %nmhwarning%
 .\"
 .\"
 .\" %nmhwarning%
 .\"


@@ -122,16 +122,28 @@ its
 .B attach
 and related responses, as described in its man page.
 .PP
 .B attach
 and related responses, as described in its man page.
 .PP

+.B nmh
+command arguments are usually called
+.IR switches .
+Some switches have a corresponding \*(lq\-no\*(rq switch, which
+negates all previous occurrences of that switch on the command line.
+This allows a user to conveniently override, on the command line, a
+switch in their profile.  Switches may be abbreviated as long as there
+is no ambiguity with another switch of the same command.  To avoid
+ambiguity with any switches that may be added in the future, it is
+recommended that full switch names be used in durable code such as
+shell scripts, functions, and aliases.
+.PP

 All the
 .B nmh
 All the
 .B nmh

-commands may be run with the single argument
+commands may be run with the single switch

 .BR \-help ,
 .BR \-help ,

-which causes them to print a list of the arguments they may be invoked
+which causes them to print a list of the switches they may be invoked

 with and then exit.
 .PP
 All the
 .B nmh
 with and then exit.
 .PP
 All the
 .B nmh

-commands may be run with the single argument
+commands may be run with the single switch

 .BR \-version ,
 which causes them to print the version number of the
 .B nmh
 .BR \-version ,
 which causes them to print the version number of the
 .B nmh