當你分析文本日志或篩選不通類型的信息時，你通常要使用 Where-Object。這里有一個通用腳本來說明復合篩選：
# logical AND filter for ALL keywords Get-Content -Path C:/windows/WindowsUpdate.log | Where-Object { $_ -like '*successfully installed*' } | Where-Object { $_ -like '*framework*' } | Out-GridView # above example can also be written in one line # by using the -and operator # the resulting code is NOT faster, though, just harder to read Get-Content -Path C:/windows/WindowsUpdate.log | Where-Object { ($_ -like '*successfully installed*') -and ($_ -like '*framework*') } | Out-GridView # logical -or (either condition is met) can only be applied in one line Get-Content -Path C:/windows/WindowsUpdate.log | Where-Object { ($_ -like '*successfully installed*') -or ($_ -like '*framework*') } | Out-GridView新聞熱點
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