Vista - how to work error interception

hi,

i have a script which control space disk on my servers(more 200). to do it i
use wmi object. on some machine, my wmi is out and i have an error message
"get-wmiobject : access is denied ..."

how can i intercept that ?

thanks for all !

Get-WmiObject exceptions are usually non-terminating, you cannot trap
non-terminating exceptions. You can stop execution when a non-terminating
exception is raised by setting Get-WmiObject's parameter -ErrorAction (or
-ea) to 'Stop' (or 1), then a Trap statement will trap the
[Management.Automation.ActionPreferenceStopException] exception. The
non-terminating error is available in your trap as the second element of the
$error collection, i.e. $error[1].

trap [Management.Automation.ActionPreferenceStopException] {
# handle the exception
continue # exit the trap
}
gwmi ... -ea 1

--
Kiron

Correction:
"The non-terminating error is available in your trap as the second element
of the $error collection, i.e. $error[1]."

The non-terminating error is wrapped by the ActionPreferenceStopException,
which is available in the trap through the current pipeline object '$_'. At
least the non-terminating exception's message is appended to
ActionPreferenceStopException's message. This stuff is not documented, sorry
about 'my non-terminating' error, I was thinking 'theoretically'.


--
Kiron