Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
programmierung:powershell [2012-04-19 09:16] stefan angelegt |
programmierung:powershell [2014-04-05 11:42] (aktuell) |
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====== Some common tasks in Windows PowerShell ====== | ====== Some common tasks in Windows PowerShell ====== | ||
+ | * suppress output of Cmdlets (e.g. ''new-item''): pipe to ''out-null'' | ||
+ | * suppress error output of binaries: ''svn log 2> $null'' | ||
* suppress error messages (even those that won't go away with ''-ea 0''): ''$ErrorActionPreference = "silentlycontinue"'' | * suppress error messages (even those that won't go away with ''-ea 0''): ''$ErrorActionPreference = "silentlycontinue"'' | ||
* check if an error occured (e.g. after cmdlet with suppressed output): ''if (!$?)'' | * check if an error occured (e.g. after cmdlet with suppressed output): ''if (!$?)'' | ||
* ''copy-item'' throws an ''UnauthorizedAccessException'': use parameter ''-force'' | * ''copy-item'' throws an ''UnauthorizedAccessException'': use parameter ''-force'' | ||
+ | * RegEx: <code posh>$m = [regex]::matches("test", "([a-z]+)"); | ||
+ | if ($m[0].Success) | ||
+ | { | ||
+ | $str = $m[0].Groups[1].ToString(); | ||
+ | }</code> | ||
+ | * get name and path of the currently running script: <code posh>$scriptName = $MyInvocation.MyCommand.Name; | ||
+ | $scriptPath = split-path $MyInvocation.MyCommand.Path;</code> |