Dwayne Stewart wrote:
>
> I am new to the world of HP3000s.  I have been hired to run one and have
> spent the past several weeks learning commands to make the system work.  I
> would like to set up some of my own UDCs to manipulate and control the
> print jobs and where they are going.  I just need to know how to actually
> write new ones or edit existing UDCs.
>
> Thanks!
>
> Dwayne Stewart

Welcome to MPE/iX,

  For many purposes, command files can be easier to manage than UDCs.
A command file is simple a file with the command(s) you want to execute,
to execute it you just type the name of the file.

  UDCs are necessary for setting up an enviornment at login time.  For
example, modifying the HPPATH variable (which tells the system where to
look for executable programs).  For flexibility, you can have the login
UDC simply execute a command file, then the commands are easy to modify.

For example, a UDC might just be:
login
option logon
xeq setup.pub.account
****

  Save this to the filename 'login', then do 'setcatalog login' (this
will apply the UDC file at the USER level).

  This UDC executes (xeq) the file setup.pub.account when you login
(option logon).

  The .account is the account it applies to - you can vary the
filename.group.account to suit your purposes and to make it easy to
share the same command file between lots of users.

  You may wish to collect handy command files in a central location,
like create a group .cmds.sys and put them in it, then modify the HPPATH
variable in the setup file (executed by the login UDC).

  Also, the HELP command can lead to very useful online information, if
you haven't discovered it already.

--
Richard Gambrell
Database Administrator, Computing Services
University of Tennessee at Chattanooga
Work e-mail: [log in to unmask]
Home e-mail: [log in to unmask]