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I have the following log entry that I am processing in PowerShell I'm trying to extract all the activity names and durations using the -match operator but I am only getting one match group back. I'm not getting all of the matches that I see when I do the same thing in C# using the Regex object. Can someone explain what I am doing wrong?
Relevant PowerShell Script
$formattedMessage -match "(Get\sClient\sModel|Parse\sExpression|Get\sAbstract\sQuery|Compile\sQuery|Execute\sQuery|Get\sQuery\sPlan\sComplexity|Async\sTotal|Total)\s-\sduration\(([0-9]*)" | out-null
$matches
Output
Name Value
---- -----
0 Get Client Model - duration(0
1 Get Client Model
2 0
Log Entry Example:
Timestamp: 11/9/2009 6:48:41 PM
Message:
Category: QueryService
Priority: 3
EventId: 1001
Severity: Information
Title: SPARQL Query Response
Machine: SPOON16-SERVER
App Domain: KnowledgeBaseHost.exe
ProcessId: 2040
Process Name: D:\QueryService\QSHost.exe
Thread Name:
Win32 ThreadId:8092
Extended Properties:
Key - Workflow_cbbdd58b-e574-4054-88d4-1dd7a56dc9d9
Timeout - 1800
Result Format - WireTable
Result from Registry - False
Compiled Query from Cache - True
Result Count - 28332
Query Plan Complexity - 661622
Get Client Model - duration(0) start(0)
Parse Expression - duration(0) start(0)
Get Abstract Query - duration(0) start(0)
Compile Query - duration(0) start(0)
Get Query Plan - duration(0) start(1)
Execute Query - duration(63695) start(1)
Get Query Plan Complexity - duration(0) start(63696)
Get Executed Operations - duration(0) start(63696)
Total - duration(63696) start(0)
Async Total - duration(63696) start(0)
611
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$input. Contains an enumerator that enumerates all input that's passed to a function. The $input variable is available only to functions and script blocks (which are unnamed functions). In a function without a begin , process , or end block, the $input variable enumerates the collection of all input to the function.
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You can do this with the Select-String cmdlet in V2, but you need to specify the -AllMatches switch, e.g.:
$formattedMessage | Select-String 'regexpattern' -AllMatches
Keep in mind that with the -match operator the primary thing you are doing is looking for "a" match, i.e., is the regex pattern matched or not?
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