Log search regex

Author: bwren

articles/log-analytics/log-analytics-search-reference.md

@@ -1,4 +1,4 @@
----
+---
 title: Log Analytics search reference | Microsoft Docs
 description: The Log Analytics search reference describes the search language and provides the general query syntax options you can use when searching for data and filtering expressions to help narrow your search.
 services: log-analytics
@@ -13,7 +13,7 @@ ms.workload: na
 ms.tgt_pltfrm: na
 ms.devlang: na
 ms.topic: article
-ms.date: 10/25/2016
+ms.date: 12/07/2016
 ms.author: banders
 
 ---
@@ -250,6 +250,29 @@ TimeGenerated:[NOW..NOW+1DAY]
 SampleValue:[0..2]
 ```
 
+### Regular Expressions
+You can specify a search condition for a field with a regular expression by using the Regex keyword.
+
+**Syntax**
+
+```
+field:Regex("Regular Expression")
+```
+
+```
+field=Regex("Regular Expression")
+```
+
+**Example**
+
+```
+Computer=Regex("C.*")
+```
+
+```
+Computer=Regex("^C.*")
+```
+
 ### Logical operators
 The query languages support the logical operators (*AND*, *OR*, and *NOT*) and their C-style aliases (*&&*, *||*, and *!*) respectively. You can use parentheses to group these operators.