1  IF
   Provides conditional command processing.

   Format

     IF  condition state
 

2  Parameter
 

condition

   This is a keyword specifying the particular condition to be
   evaluated.

   Specific conditions can have prerequisites, such as the
   specification of an additional parameter, or requiring a
   specified volume be mounted.

   This keyword cannot be abbreviated.
 

state

   A keyword that specifies the particular condition; the particular
   state for the the test condition. The state can be specific to
   the particular condition.

   This keyword cannot be abbreviated.
 

2  Description
   Provides conditional command interpretation.

   Keyword    Condition Resulting Action

   FAT        [NO]COMPATDetermines if the target FAT volume
                        structure was initialized by OpenVMS, and
                        if the version meets minimum structural
                        requirements. If the version meets current
                        volume structure compatibility requirements,
                        the IF evaluates as TRUE.

                        FAT volume structures not initialized by
                        OpenVMS EFI$CP will evaluate as FALSE.
                        This includes any volume structures
                        initialized by the EFI Shell environment,
                        or by Microsoft Windows.

                        Requires the specified FAT volume be
                        mounted.
   VERSION    MINIMUM   Determines if the running version matches
                        the specified version, or higher.

   Specification of ELSE is optional. Specification of ENDIF is
   required.

   The nesting of IF constructs is not supported.

EFI$CP> IF FAT COMPATIBLE foo:
EFI$CP> WRITE "Commands performed if FAT compatible"
EFI$CP> ELSE
EFI$CP> WRITE "Commands performed if not compatible,"
EFI$CP> WRITE "or if not intialized by EFI$CP"
EFI$CP> ENDIF

EFI$CP> ! initialize the target FAT volume foo:, if found not current/compatible
EFI$CP> IF FAT NOCOMPATIBLE foo:
EFI$CP> WRITE "Performing volume (re)initialization"
EFI$CP> INITIALIZE...
EFI$CP> ENDIF