Powershell小技巧之复合筛选
当你分析文本日志或筛选不通类型的信息时,你通常要使用Where-Object。这里有一个通用脚本来说明复合筛选:
#logicalANDfilterforALLkeywords Get-Content-PathC:\windows\WindowsUpdate.log| Where-Object{$_-like'*successfullyinstalled*'}| Where-Object{$_-like'*framework*'}| Out-GridView #aboveexamplecanalsobewritteninoneline #byusingthe-andoperator #theresultingcodeisNOTfaster,though,justhardertoread Get-Content-PathC:\windows\WindowsUpdate.log| Where-Object{($_-like'*successfullyinstalled*')-and($_-like'*framework*')}| Out-GridView #logical-or(eitherconditionismet)canonlybeappliedinoneline Get-Content-PathC:\windows\WindowsUpdate.log| Where-Object{($_-like'*successfullyinstalled*')-or($_-like'*framework*')}| Out-GridView