topic Re: psf File Syntax Question in Operating System - HP-UX

psf File Syntax Question

Bob Viveney_1 — Thu, 03 Sep 2009 17:50:53 GMT

I know I can use a line such as

prerequisites Othe_Prod,r>=C.06.00.00.%

in my psf file. What does the '%' character mean? I assume it is used as a delimiter to the parser - match up to here - but I cannot find any documentation for it. Where is the use of '%' documented?

Re: psf File Syntax Question

Dennis Handly — Fri, 04 Sep 2009 07:34:09 GMT

I don't see any mention of "%" here:
http://docs.hp.com/en/5900-0307/ch01s04.html#bajdibib

Typically "%" is used internally when developing HP-UX software.

Re: psf File Syntax Question

Bob Viveney_1 — Fri, 04 Sep 2009 09:07:45 GMT

If you look at the INDEX files under /var/adm/sw/products you'll see there are lots of prerequisites/coreqresites which use the '%' sign in the version string ...

cd /var/adm/sw/products
find . -name INDEX -exec grep prerequi {} \; | grep "%"

Some examples ...
prerequisites LdapUxClient.LDAP-C-SDK,r>=B.03.20.%
prerequisites OS-Core.UX-CORE,r>=B.11.22.%
prerequisites WBEMServices.WBEM-CORE,r>=A.02.00.%
prerequisites OVSNMPAgent.MASTER,r>=B.11.23.%71

So its commonly used, seems to delimit the version number comparison but I can't find and documentation on it.

Re: psf File Syntax Question

Dennis Handly — Fri, 04 Sep 2009 09:16:13 GMT

>seems to delimit the version number comparison

If done correctly, the "%" distinguishes HP internal/beta versions. (Typically there is a number after the "%".)

Re: psf File Syntax Question

Dennis Handly — Sat, 05 Sep 2009 06:31:32 GMT

>the "%" distinguishes HP internal/beta versions.

And "%" sorts before numbers, in ASCII.