One line Powershell to delete all list items?

Question

Is it possible to have one line powershell to delete all items in a list (no folders)?
I tried this one from
http://social.msdn.microsoft.com/Forums/en/sharepointdevelopment/thread/de844268-6bb5-4510-9c83-bbca24cf278f,
$list.get_items() | where { $_.column name with spaces -like '3*' } | % { $_.Delete() }.
In my case, I remove the middle part: $list.get_items() | % { $_.Delete() }
I got one item removed with the exception:
An error occurred while enumerating through a collection: Collection was modifi
ed; enumeration operation may not execute..
At line:1 char:1
+  <<<< $list.Get_Items() | % {$_.Delete()}
    + CategoryInfo          : InvalidOperation: (Microsoft.Share...on+SPEnumer
   ator:SPEnumerator) [], RuntimeException
    + FullyQualifiedErrorId : BadEnumeration
Seems I am missing some here - I am running Powershell through SharePoint 2010 Management Shell as Administrator.

Answer 1

this happens because after you delete the first item, the original collection is modified.
You can do a simple while to delete all items:
while($list.Items.Count -gt 0){$list.Items.Delete(0)}
Hope this could help.