Tong – 临渊羡鱼不如退而结网,潜心修练～

• 查询本机或远端机器的磁盘空间

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function Check-Diskspace {

param (

[string]$computer

)

$drives = gwmi Win32_LogicalDisk -computer $computer | where { $_.DriveType -eq 3 }

foreach ($drive in $drives) {

write-host "Drive Name : " $drive.DeviceID

write-host "Total Space : "($drive.size/1GB).ToString("0.00") "GB"

write-host "Free Space : " ($drive.FreeSpace/1GB).ToString("0.00") "GB"

write-host " "

}

}

Check-DiskSpace $computer

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• 查询某个磁盘或文件夹下的所有当前目录文件夹的大小

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Function get-OneFolderSize {

param ([System.String]${Path1})

$colItems = (Get-ChildItem $path1 -recurse | Measure-Object -property length -sum)

$colItems.sum /1MB

}

Function Get-FolderSize {

param ([System.String]${Path})

$Folders =dir $Path

Foreach ($Folder in $Folders)

{

$sizeMB =get-OneFolderSize $Folder.FullName

$Folder| Add-Member -MemberType NoteProperty -Name "SizeMB" -Value ($sizeMB) -PassThru

}

}

# Get-FolderSize e:\tools |sort -property SizeMB -Descending |select FullName,@{n=’FolderSize’;e={"{0:N2}" -f $_.SizeMB}} |select -first 10

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Scenario 1： 将一个Folder下超过一定时间未访问的文件列出来，然后根据实际情况处理

(more…)

$startFolder = “E:\”
$colItems = (Get-ChildItem $startFolder | Measure-Object -property length -sum)
“$startFolder — ” + “{0:N2}” -f ($colItems.sum / 1MB) + ” MB”

$colItems = (Get-ChildItem $startFolder  | Where-Object {$_.PSIsContainer -eq $True} | Sort-Object)
foreach ($i in $colItems)
{
$subFolderItems = (Get-ChildItem -recurse  $i.FullName | Measure-Object -property length -sum)
$i.FullName + ” — ” + “{0:N2}” -f ($subFolderItems.sum / 1MB) + ” MB”
}

We need to analyze some big log files in daily job. And we just need to display some lines, like first n lines or last n lines.

Just write some methods here for my further reference.

1. Way to list top n lines: