The second method for generating many letters is slightly more wasteful
of computer time, but to my mind it is simpler to use.
I reccommend it over the command
multiletter and
have included a brief discussion of the previous case only
to keep the macro set upward compatible.
Do us both a favor and forget I mentioned it.
This method takes a little longer because it requires TEX to input the
same file many times.
It is simpler because it requires no change in syntax from
the format used for a single letter.
To use this method you create a file YOUR FILE A (the filetype
doesn't have to be TEX here),
which contains the body of your letter, including your signature.
You then create a driver file (filename TEX A) of the form
%
phyzzx
letters
optional
date{ your date }
letter{ Addressee }
Dear …
par
%
your.file
endletter
…
letter{ Addressee }
Dear …
par
%
your.file
endletter
end
Note, the period between the filename and filetype is crucial.
What is being done in this method is that we are using TEX's
ability to input an external file as often as you wish.
This technique has the added advantage that you can even have the
letters vary somewhat.
To perform this trick you use the
def command.
To begin you use the names of some undefined control sequences in
the file YOUR FILE A, and then redefine these sequences
in the main driver file after each
endletter and before
the start of the next letter.