单服务器上的获取修补程序

Question

首次使用powershell，我似乎无法得到下面的工作 - 没有显示 - 我认为脚本工作，但我认为我需要一些东西来显示结果？任何帮助，请：

$hotfix1 = Get-HotFix -Id KB981872 

If($hotfix) 
{ 
$Output = "Hotfix is installed you may proceed" 
} 
else 
{ 
$Output = "Hotfix is not installed" 
} 
$hotfix1 = Get-HotFix -Id KB981872 

由于吉文 - 我已经更新了它：

write-host "This will check if Hotfix KB979808 is installed on this Server." -ForegroundColor 

Black -BackgroundColor Cyan 
write-host "This is required for Windows Server 2008 R2 DFSR Pre-Seeding Robocopying" - 

ForegroundColor Black -BackgroundColor Cyan 
Write-Host "" 

$hotfix1 = Get-HotFix -Id KB979808 -ErrorAction SilentlyContinue 

If($hotfix1 -match "KB979808") 
{ 
    Write-Host "Hotfix is installed you may proceed" -foregroundcolor "green" 
    Write-Host "" 
} 
else 
{ 
    Write-Host "Hotfix is NOT installed - Please ensure you install this hotfix BEFORE" 
    Write-host "copying any data" -foregroundcolor "red" 
    Write-Host "" 
} 

Answer 1

代码不输出任何东西，因为你把它分配给一个变量。删除作业。您还将命令输出分配给$ hotfix1，但在if语句中检查$ hotfix。此外，如果无法找到热修复，则会出现错误，因此请添加-ErrorAction参数以抑制错误：

$hotfix1 = Get-HotFix -Id KB981872 -ErrorAction SilentlyContinue 

If($hotfix1) 
{ 
    "Hotfix is installed you may proceed" 
} 
else 
{ 
    "Hotfix is not installed" 
} 

$hotfix1