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+.TH VIRTEX 1 "14 December 1993"
+.\"=====================================================================
+.if t .ds TX \fRT\\h'-0.1667m'\\v'0.20v'E\\v'-0.20v'\\h'-0.125m'X\fP
+.if n .ds TX TeX
+.ie t .ds OX \fIT\v'+0.25m'E\v'-0.25m'X\fP for troff
+.el .ds OX TeX for nroff
+.\" the same but obliqued
+.\" BX definition must follow TX so BX can use TX
+.if t .ds BX \fRB\s-2IB\s0\fP\*(TX
+.if n .ds BX BibTeX
+.\" LX definition must follow TX so LX can use TX
+.if t .ds LX \fRL\\h'-0.36m'\\v'-0.15v'\s-2A\s0\\h'-0.15m'\\v'0.15v'\fP\*(TX
+.if n .ds LX LaTeX
+.if t .ds AX \fRA\\h'-0.1667m'\\v'0.20v'M\\v'-0.20v'\\h'-0.125m'S\fP\*(TX
+.if n .ds AX AmSTeX
+.if t .ds AY \fRA\\h'-0.1667m'\\v'0.20v'M\\v'-0.20v'\\h'-0.125m'S\fP\*(LX
+.if n .ds AY AmSLaTeX
+.\"=====================================================================
+.SH NAME
+virtex \- virgin TeX for production typesetting
+.SH DESCRIPTION
+.B virtex
+is a version of the \*(TX program that has no
+preloaded macro packages, but is capable of
+loading a special preformatted binary file, called
+a
+.I format
+.RI ( .fmt )
+file produced by the
+.BR initex (1)
+program.
+.PP
+Preprocessing of large macro files and font
+definitions by
+.B initex
+makes it possible to rapidly load complex
+packages, like plain \*(TX, \*(AX, \*(AY, or \*(LX,
+without the overhead of macro parsing and file
+opening that would otherwise be experienced.
+.PP
+.B virtex
+can be invoked directly, providing it with a name
+of a format file specially prefixed by an
+ampersand:
+.RS
+.I "virtex '&plain' filename"
+.RE
+This causes it to load the binary file named
+.I plain.fmt
+from a directory in the standard TEXINPUTS search
+path, and then load the text file
+.I filename
+and process it.  The quotes are needed to protect
+the ampersand from Unix shell interpretation.
+.PP
+Because this need occurs frequently, Unix
+.B virtex
+provides a convenient shorthand.  If it is invoked
+under a name other than
+.BR virtex ,
+such as
+.BR footex ,
+it will behave as if it had been invoked as
+.I "virtex '&footex'"
+and first load a file named
+.IR footex.fmt .
+Thus,
+.BR amslatex ,
+.BR amstex ,
+.BR lamstex ,
+.BR latex ,
+.BR slitex ,
+.BR tex ,
+.BR texinfo ,
+and others can all be file system links to
+.BR virtex ,
+without requiring additional disk space.
+.\"=====================================================================
+.SH "SEE ALSO"
+.BR initex (1),
+.BR tex (1).