HP 3000 Manuals HP 3000 Manuals
Using Predefined Variables
The CI provides predefined variables, giving the user access to system
information. The names and default values are preset in the session
variable table.
The following list categorizes the type of system information available
and some of the predefined variables that access it. (A listing of
commonly used predefined variables is provided in Appendix A. Refer to
the MPE/iX Commands Reference Manual (32650-90003) for a listing of all
predefined variables available.)
Directory information HPACCOUNT, HPGROUP, HPUSER, HPCWD
User's capabilities HPUSERCAP, HPUSERCAPF, HPACCTCAP, HPGROUPCAP
User's environment HPREDOSIZE, HPPATH, HPPROMPT, HPERRDUMP,
HPTYPEAHEAD, HPPIN, HPFILE
Input/output HPLDEVIN, HPINTERACTIVE, HPSTDLIST
specifications
Error handling CIERROR, JCW, HPCIERRMSG, HPMSGFENCE, HPCIERR,
information HPFSERR
Job information HPJOBFENCE, HPSESLIMIT, HPJOBTYPE, HPJOBNAME
System configuration HPCONSOLE, HPCPUNAME, HPSYSNAME
information
System date and time HPDATE, HPDATEF, HPTIMEF, HPYEAR
Displaying Values
A list of all variables and their current values can be displayed with
the SHOWVAR command followed by the wildcard character @. Both
predefined variables and any user-defined variables in the session table
are displayed.
:SHOWVAR @
As with user-defined variables, the current value of specific predefined
variables can be displayed using the SHOWVAR command and the variable
name. In the following example, the HPREDOSIZE, HPPATH, [REV
BEG]HPCWD[REV END], and HPPROMPT variables are displayed.
:SHOWVAR HPPROMPT
HPPROMPT = :
:SHOWVAR HPPATH, HPREDOSIZE
HPPATH = !HPGROUP,PUB,PUB.SYS
HPREDOSIZE = 20
[REV BEG]
:SHOWVAR HPCWD
HPCWD = /SK72NM/PUB/somehfsdir[REV END]
[REV BEG]
In this last example, /SK72NM/PUB is an /ACCOUNT/GROUP path (in
hierarchical file system) that corresponds to an MPE/iX GROUP.ACCOUNT,
and somehfsdir is a directory (below PUB).[REV END]
Modifying Values
No predefined variables can be deleted by the user, however, some of them
are modifiable. (Refer to the MPE/iX Commands Reference Manual
(32650-90003) for a list of predefined variables that cannot be
modified.) You can change the default setting of any modifiable
predefined variable to better suit your needs. The following example
alters the CI prompt and the size of the command history stack using the
SETVAR command.
:SHOWVAR HPPROMPT
HPPROMPT = :
:SETVAR HPPROMPT "==>"
==>
:SHOWVAR HPREDOSIZE
HPREDOSIZE = 20
:SETVAR HPREDOSIZE 25
:SHOWVAR HPREDOSIZE
HPREDOSIZE = 25