Overriding automatic determination of print file types

In some cases, you may need to override the automatic determination of print file types.

You can override the automatic determination of print file type for PostScript printing with the -d and -s flags. The -d flag overrides the default print file type and the -s flag specifies PostScript printing.

You might need to override the automatic determination of print file type for PostScript printing in the following situations:

To print a PostScript file named myfile.ps that does not begin with %!, type the following command:
```
qprt -ds -Pps myfile.ps
```
To print the source listing of a PostScript file named myfile.ps that begins with %!, type the following command:
```
qprt -da -Pps myfile.ps
```