pTAL Reference Manual (H06.03+)

Disk File Names and HP TACL Commands
HP pTAL Reference Manual—523746-005
B-4
Logical File Names
Following are all the partial file names you can specify for a disk file named
\BRANCH.$DIV.DEPT.EMP:
You can change your current default values in various ways:
•
You can change the volume and subvolume with the VOLUME command of, for
example, the HP TACL products.
•
In some cases, you can specify node (system), volume, and subvolume names by
issuing HP TACL ASSIGN SSV commands.
Logical File Names
You can use a logical file name in place of the disk file name. A logical file name is an
alternate name you specify in an HP TACL DEFINE or ASSIGN command.
Internal File Names
The C-series operating system uses the internal form of a file name when passing it
between your program and the operating system. The D-series operating system uses
the internal form only if your program has not been converted to use D-series features.
For information about converting external file names to internal file names in a
program, see the Guardian Programmer’s Guide and the Guardian Procedure Calls
Reference Manual.
HP TACL Commands
Before starting the compiler, you can send information to it by using the following
HP TACL commands:
•
DEFINE on page B-5
•
PARAM SWAPVOL on page B-7
•
ASSIGN on page B-7
Omitted File-Name Parts Partial File Name
D-Series
System
C-Series
System
Node (system) $div.dept.emp Yes Yes
Node (system), volume dept.emp Yes Yes
Node (system), volume, subvolume emp Yes Yes
Volume \branch.dept.emp Yes No
Volume, subvolume \branch.emp Yes No
Subvolume \branch.$div.emp No Yes
Node (system), subvolume $div.emp No Yes