.hd installation "print Subsystem installation name" 02/22/82
installation
.ds
'Installation' merely prints the Subsystem installation name
on standard output.
.sp
The installation name resides in the file
.nh
"=extra=/installation"
.hy
and may be changed at the discretion of the Subsystem manager.
.es
echo Run at [installation]
.fl
=extra=/installation
