MPE/iX provides a number of commands and intrinsics that enable
you to obtain information about your files. You can use the commands
and intrinsics described in this chapter to obtain file information
for a variety of purposes.
This chapter is divided into two main sections:
General File Information covers the commands and intrinsics
that you use to obtain information concerning the physical and
operational characteristics of your file (defined by device
dependencies, a disk file's label, FILE commands,
HPFOPEN/FOPEN intrinsic parameters, and file system
defaults), as well as access-dependent details about a currently
opened file (including EOF and logical record marker locations).
Commands and intrinsics described in this section are:
LISTFILE command
LISTEQ command
[CMD] INFO command
FFILEINFO intrinsic
FGETINFO intrinsic
FLABELINFO intrinsic
FRELATE intrinsic
Error information covers the intrinsics that you use specifically
to handle file system errors-to identify an error and to display
error information at the terminal. This can include a description of
the error condition returned by the last file access intrinsic call.
Intrinsics described in this section are:
FCHECK intrinsic
FERRMSG intrinsic
PRINTFILEINFO intrinsic
A number of commands and intrinsics return the same information.
Which one you use in a certain situation is by the context and by
the purpose for which you wish to use the information.