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<TITLE>2.1 Invoking FunnelWeb</TITLE>
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<P><FONT SIZE="5">2.1 Invoking FunnelWeb</FONT><BR>
<P>When a user invokes FunnelWeb at the operating system
command level, the user must provide a command line
instructing FunnelWeb what to do. Typically an operating
system command line consists of a <I>verb</I> indicating
that a particular program should be run, followed by a list
of options. For example:
<P>
<PRE>
rename file1 file2
</PRE>
<P>In this case, the verb is <SAMP>rename</SAMP> and the
command line options are <SAMP>file1 file2</SAMP>.
<P>Operating systems differ greatly in the depth with
which they process their command lines, ranging from systems that simply
pass the entire command line string to the invoked program
(e.g. MSDOS) through to systems that perform complete
command line parsing (e.g. OpenVMS). Syntax conventions vary
considerably.
<P>So as to achieve maximum portability and consistency of
invocation across different platforms, FunnelWeb reads its
command line as a raw string and performs all its own
parsing. This is portable
because, at the very least, all operating systems allow
invoked programs access to the raw command line.
<P>The command verb used to invoke FunnelWeb should be
"<TT>fw</TT>".
<P>
<PRE>
FunnelWeb_verb = "fw"
</PRE>
<P>If this verb is not available, some alternatives are
"<TT>funweb</TT>", "<TT>fun</TT>", and "<TT>funnelweb</TT>".
The verbs <SAMP>web</SAMP> or <SAMP>fweb</SAMP> should be avoided
as they are the names of other literate programming tools.
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