Wednesday 3 April 2013

Eventlog and Powershell

Powershell can use the EventLog from the Powershell command line easily. This article will quickly display some Powershell script for handling the Eventlog:
new-eventlog -logname Application -Source MyCoolPowershellLog            
write-eventlog -Source MyCoolPowershellLog -EventId 0001 -Message "This is an
event registered by Powershell" -EntryType Information            
write-eventlog -LogName Application -Source MyCoolPowershellLog -EventId 0001 -Message "This is an event registered by Powershell" -EntryType Information            
get-eventlog -logname Application -Newest 10
To create a new source, we use the new-eventlog cmdlet and specify the logname, set here to Application. To create a new event, we use write-eventlog cmdlet. Here we supply the LogName, Source, EventId, Message and EntryType. EntryType can be Information, Warning and Error. To get the content in the eventlog, we can use the get-eventlog cmdlet.

Finally, to remove the Eventlog Source, use:

remove-eventlog -source MyCoolPowershellLog

Make note, this will delete the eventlog source, but not its already recorded events. Now, new events can be written to this eventlog source. Actually the old events of the eventlog source still exists on the system, as you can't remove events themselves from an eventlog source, as is the convention.
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