OSF DCE Administration Guide--Core Components

OSF DCE Administration Guide—Core Components
dcecp>
2.6.4 Most Recent Operation Argument Name (_n)
The _n variable holds the name or names used as an argument to the most recent control
program operation. Most DCE control program objects take a name or a list of names as
an argument. Those that don’t do so include endpoint, attrlist, uuid, name, utc, and the
miscellaneous dcecp commands dcecp_initInterp, login, logout, errtext, quit, resolve,
and shell.
The name is usually the third argument in a dcecp operation, as shown in the following
directory operation:
dcecp> directory create /.:/sales/printers/text_printers
dcecp>
Once set, you can use $_n in subsequent operations in place of the name argument. For
example, you could modify a directory attribute for the /.:/sales/printers/text_printers
directory created in the preceding example, as follows:
dcecp> directory mod $_n -change {CDS_Convergence low}
dcecp>
The _n variable can also hold a list of names, as when you perform a directory service
operation on more than one name. For instance, you could create several directories and
then decide to modify an attribute:
dcecp> directory create {
> /.:/sales/printers/text_printers
> /.:/sales/printers/graphics_printers
> /.:/sales/printers/colorgraphics_printers }
dcecp>
A subsequent directory service operation can simply use the _n variable in place of the
name or list of names:
dcecp> directory modify $_n -change {CDS_convergence high}
dcecp>
2.6.5 Parent of _n (_p)
The _p variable holds the parent of the name stored in _n. The _n variable holds the
name or list of names used in the argument to the most recent operation (see Section
2.6.4). The _p variable holds the name or list of names that are hierarchically above the
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