pTAL Reference Manual (H06.08+)

Disk File Names and HP TACL Commands
HP pTAL Reference Manual—523746-006
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