的值可用于 End 块,它包含函数的所有输入。 $LastExitCode 包含运行的最后一个基于 Windows 的程序的退出代码。 $Matches $Matches 变量与 -match 和 -not match 运算符一起使用。 将标量输入提交给 -match 或 -notmatch 运算符时,如果检测到匹配,则会返回一个布尔值, 并使用由所有匹配字符串值
这是指最近的PowerShell操作,而不是最后一个外部命令,这是你在$LastExitCode得到的。 在你的例子中,$LastExitCode是0,因为最后一个外部命令是cmd,在回显一些文本方面是成功的。但2>&1导致消息stderr被转换为输出流中的错误记录,这告诉PowerShell在上次操作过程中出现错误,导致$?是False。 为了说明这一点,请考虑...
這些運算子會使用$?和$LASTEXITCODE變數來判斷管線是否失敗。 這可讓您將其與原生命令搭配使用,而不只是與 Cmdlet 或函式搭配使用。 在這裡,第一個命令成功,且會執行第二個命令: PowerShell Write-Output'First'&&Write-Output'Second' Output First Second ...
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$LastExitCode包含运行的最后一个基于 Windows 的程序的退出代码。$Matches$Matches 变量与 - 21、match 和 -not match 运算符一起使用。将标量输入提交给 -match 或 -notmatch 运算符时,如果检测到匹配,则会返回一个布尔值,并使用由所有匹配字符串值组成的哈希表填充 $Matches 自动变量。有关 -match 运算符...
$lastExitCode Anumber that represents the exit code/error level of the last script or application that exited $? (pronounced “dollar hook”) A Boolean value that represents the success or failure of the last command 6.Format-Table $fields = "Name",@{Label = "WS (MB)"; Expression = ...
An empty set of square brackets following a datatype, such as <string[]>, indicates that the parameter can accept multiple values passed as an array or a collection object. Positional parameters Some cmdlets are designed to accept positional parameters. Positional parameters allow you to provide ...
{$_.Maximum-ge0} |# Remove the empty records (when the job is stopped or starting)Sort-Object-PropertyTimestamp-Descending|Where-Object{$_.Timestamp-ge$startTimeStamp} |# Keep only the records of the latest runSelect-Object-First$stopThresholdMinute|# Take the last N recordsMeasure-Object...
For PowerShell scripts, the value of $LASTEXITCODE depends on how the script was called and whether the exit keyword was used: When a script uses the exit keyword: $LASTEXITCODE is set to value the specified by the exit keyword. For more information, see about_Language_Keywords. When...
& { # Disable $PSNativeCommandUseErrorActionPreference for this scriptblock $PSNativeCommandUseErrorActionPreference = $false robocopy.exe D:\reports\operational "\\reporting\ops" CY2022Q4.md if ($LASTEXITCODE -gt 8) { throw "robocopy failed with exit code $LASTEXITCODE" } } In thi...