.TH DOCTYPE 1 .CT 1 writing_troff .SH NAME doctype \- guess command line for formatting a document .SH SYNOPSIS .B doctype [ .I option ... ] [ .I file ] ... .SH DESCRIPTION .I Doctype guesses and prints on the standard output the command line for printing a document that uses .IR troff (1), related preprocessors like .IR eqn (1), and the .IR ms (6) and .I mm macro packages. .PP Option .B -n invokes .I nroff instead of .I troff. Other options are passed to .I troff. .SH EXAMPLES .TP .L eval `doctype chapter.?` | apsend Typeset files named chapter.0, chapter.1, ... .SH SEE ALSO .IR troff (1), .IR eqn (1), .IR tbl (1), .IR refer (1), .IR prefer (1), .IR pic (1), .IR ideal (1), .IR grap (1), .IR ped (9.1), .IR mcs (6), .IR ms (6), .IR man (6) .SH BUGS It's pretty dumb about guessing the proper macro package.