Just a small patch to document the '=' command. Tim.
Index: mail.1 =================================================================== RCS file: /cvs/src/usr.bin/mail/mail.1,v retrieving revision 1.70 diff -u -p -r1.70 mail.1 --- mail.1 16 Dec 2014 18:37:17 -0000 1.70 +++ mail.1 3 Jan 2015 18:42:15 -0000 @@ -385,6 +385,8 @@ argument goes to the .Ar n Ns th previous message and prints it. +.It Ic \&= +Prints the currently selected message number. .It Ic \&? Prints a brief summary of commands. .It Ic \&!