NAME
Get-EventLog
SYNOPSIS
Gets the events in an event log, or a list of the event logs, on the local or remote computers.
-------------------------- EXAMPLE 1 --------------------------
C:\PS>get-eventlog -list
Description
-----------
This command displays information about the event logs on the computer.
-------------------------- EXAMPLE 2 --------------------------
C:\PS>get-eventlog -newest 5 -logname application
This command displays the five most recent entries in the Application event log.
-------------------------- EXAMPLE 3 --------------------------
C:\PS>$events = get-eventlog -logname system -newest 1000
C:\PS> $events | group-object -property source -noelement | sort-object -property count -descending
Count Name
----- ----
75 Service Control Manager
12 Print
6 UmrdpService
2 DnsApi
2 DCOM
1 Dhcp
1 TermDD
1 volsnap
This example shows how to find all of the sources that are represented in the 1000 most recent entries in the System event log.
The first command gets the 1,000 most recent entries from the System event log and stores them in the $events variable.
The second command uses a pipeline operator (|) to send the events in $events to the Group-Object cmdlet, which groups the entries by the value of the Source property. The command uses a second pipeline operator to send the grouped events to the Sort-Object cmdlet, which sorts them in descending order, so the most frequently appearing source is listed first.
Source is just property of event log entries. To see all of the properties of an event log entry, pipe the events to the Get-Member cmdlet.
-------------------------- EXAMPLE 4 --------------------------
C:\PS>get-eventlog -logname System -EntryType Error
This command gets only error events from the System event log.
-------------------------- EXAMPLE 5 --------------------------
C:\PS>get-eventlog -logname System -instanceID 3221235481 -Source "DCOM"
This command gets events from the System log that have an InstanceID of 3221235481 and a Source value of "DCOM."
-------------------------- EXAMPLE 6 --------------------------
C:\PS>get-eventlog -logname "Windows PowerShell" -computername localhost, Server01, Server02
This command gets the events from the "Windows PowerShell" event log on three computers, Server01, Server02, and the local computer, known as "localhost".
-------------------------- EXAMPLE 7 --------------------------
C:\PS>get-eventlog -logname "Windows PowerShell" -message "*failed*"
This command gets all the events in the Windows PowerShell event log that have a message value that includes the word "failed".
-------------------------- EXAMPLE 8 --------------------------
C:\PS>$a = get-eventlog -log System -newest 1
C:\PS> $a | format-list -property *
EventID : 7036
MachineName : Server01
Data : {}
Index : 10238
Category : (0)
CategoryNumber : 0
EntryType : Information
Message : The description for Event ID
Source : Service Control Manager
ReplacementStrings : {WinHTTP Web Proxy Auto-Disco
InstanceId : 1073748860
TimeGenerated : 4/11/2008 9:56:05 PM
TimeWritten : 4/11/2008 9:56:05 PM
UserName :
Site :
Container :
This example shows how to display all of the property values of an event.
The first command gets the newest event from the System event log and saves it in the $a variable.
The second command uses a pipeline operator (|) to send the event in $a to the Format-List command, which displays all (*) of the event properties.
-------------------------- EXAMPLE 9 --------------------------
C:\PS>get-eventlog -log application -source outlook | where {$_.eventID -eq 34}
This command gets events in the Application event log where the source is Outlook and the event ID is 34. Even though Get-EventLog does not have an EventID parameter, you can use the Where-Object cmdlet to select events based on the value of any event property.
-------------------------- EXAMPLE 10 --------------------------
C:\PS>get-eventlog -log system -username NT* | group-object -property username -noelement | format-table Count, Name -auto
6031 NT AUTHORITY\SYSTEM
42 NT AUTHORITY\LOCAL SERVICE
4 NT AUTHORITY\NETWORK SERVICE
This command returns the events in the system log grouped by the value of their UserName property. The Get-EventLog command uses the UserName parameter to get only events in which the user name begins with "NT*".
-------------------------- EXAMPLE 11 --------------------------
C:\PS>$May31 = get-date 5/31/08
C:\PS> $July1 = get-date 7/01/08
C:\PS> get-eventlog -log "Windows PowerShell" -entrytype Error -after $may31 -before $july1
This command gets all of the errors in the Windows PowerShell event log that occurred in June 2008.
Ed Price - MSFT edited Revision 10. Comment: Added "Community Resources" section and tags.
Ed Price - MSFT edited Revision 6. Comment: Tags and formatting whitespace
tonysoper_MSFT edited Revision 1. Comment: + example snippet
Very helpful