Catching errors

PowerShell provides two different ways to handle terminating errors: using try-catch-finally, or using trap.

try, catch, and finally

PowerShell 2.0 introduced try-catch-finally as a means of handling terminating errors.

try

A try block must be followed by either one or more catch blocks, a finally block, or both. Each of the following patterns is valid:

try { <script> } catch { <script> } 
try { <script> } finally { <script> } 
try { <script> } catch { <script> } finally { <script } 

An error occurring within try will...