Using PowerShell to handle Eventlog

Hello,
my idea is as follows (basically to play & learn with Powershell):

* Running a daily powershellscript at night which:
** Exports all entries in a file
** Delete all entries

Ok i could use somethnig like this to list all System-Event Entries
and write them to log:
>> Get-Eventlog system | Format-List | out-file -encoding ASCII -filepath
output2.txt
or
>> Get-Eventlog system -newest 10 | Format-List | out-file -encoding ASCII
-filepath output2.txt
to have only the latest

Now i am asking myself howto delete all entries in the second step.

any ideas how to handle this ?


Best regards

Ok,

i can use this:
>>  get-eventlog system | Format-List | out-file -encoding ASCII -filepath
foobar.txt
to dump all system-related informations in my text file


and i can use this:
>> get-eventlog -list |%{$_.clear()}
to delete the event logs completly


Now regarding the filename:
--
i.e.
i would like to end with files like that:
* 20080415_hostname_logtype.txt (execution_date + hostname + here:
system


Best regards
fidel

> Now i am asking myself howto delete all entries in the second step.
> 
> any ideas how to handle this ?

I am not aware of any way that you can selectively delete entries like 
this.  You can export your entire log, parse the export, delete the 
entries you want, then re-import it.  But...  This method can only be 
re-imported, to my knowledge, to a *new* log name, and can't be 
re-imported into the default/original log.  For example, I can't export 
the Security log, delete it, then re-import what I just exported back to 
the Security log.

I wouldn't start editing the binary log either...