Using gpre
Go Up to Preprocessing
The syntax for gpre is:
gpre [-language] [-options] infile [outfile]
The infile argument specifies the name of the input file.
The optional outfile argument specifies the name of the output file. If no file is specified, gpre sends its output to a file with the same name as the input file, with an extension depending on the language of the input file.
gpre has switches that allow you to specify the language of the source program and a number of other options. You can place the switches either before or after the input and output file specification. Each switch must include at least a hyphen preceded by a space and a unique character specifying the switch.