powershell - 将函数作为计算属性调用以显示MB和GB Powershell脚本

Question

如何修改下面的Powershell代码以查询Linux磁盘大小，以便可以在列中将其查看为MBytes还是Gigabytes？
脚本:

#requires -version 2
function DisplayInBytes($num)
{
    $suffix = "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"
    $index = 0
    while ($num -gt 1kb)
    {
        $num = $num / 1kb
        $index++
    }
    
    "{0:N1} {1}" -f $num, $suffix[$index]
}

Function Format-FileSize()
{
    Param ([int]$size)
    If ($size -gt 1TB) { [string]::Format("{0:0.00} TB", $size / 1TB) }
    ElseIf ($size -gt 1GB) { [string]::Format("{0:0.00} GB", $size / 1GB) }
    ElseIf ($size -gt 1MB) { [string]::Format("{0:0.00} MB", $size / 1MB) }
    ElseIf ($size -gt 1KB) { [string]::Format("{0:0.00} kB", $size / 1KB) }
    ElseIf ($size -gt 0) { [string]::Format("{0:0.00} B", $size) }
    Else { "" }
}


function ConvertFrom-LinuxDfOutput
{
    param ([string]$Text)
    [regex]$HeaderRegex = '\s*File\s*system\s+1024-blocks\s+Used\s+Available\s+Capacity\s+Mounted\s*on\s*'
    [regex]$LineRegex = '^\s*(.+?)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+\s*%)\s+(.+)\s*$'
    $Lines = @($Text -split '[\r\n]+')
    if ($Lines[0] -match $HeaderRegex)
    {
        foreach ($Line in ($Lines | Select -Skip 1))
        {
            [regex]::Matches($Line, $LineRegex) | foreach {
                New-Object -TypeName PSObject -Property @{
                    Filesystem = $_.Groups[1].Value
                    '1024-blocks' = [decimal]$_.Groups[2].Value
                    Used       = [decimal]$_.Groups[3].Value
                    Available  = [decimal]$_.Groups[4].Value
                    CapacityPercent = [decimal] ($_.Groups[5].Value -replace '\D')
                    MountedOn  = $_.Groups[6].Value
                } | Select Filesystem, 1024-blocks, Used, Available, CapacityPercent, MountedOn
            }
        }
    }
    else
    {
        Write-Warning -Message "Error in output. Failed to recognize headers from 'df --portability' output."
    }
}

资料来源:https://www.powershelladmin.com/wiki/Get_Linux_disk_space_report_in_PowerShell
因为以下结果很难用HTML电子邮件解释。
PS C:\ PS> ConvertFrom-LinuxDfOutput -Text $ dfoutput [0] |英尺

Filesystem 1024-blocks    Used Available CapacityPercent MountedOn
---------- -----------    ---- --------- --------------- ---------
udev           1014160       4   1014156               1 /dev
tmpfs           204992    1332    203660               1 /run
/dev/sda1     23606716 7834904  14549620              36 /
none                 4       0         4               0 /sys/fs/cgroup
none              5120       0      5120               0 /run/lock
none           1024960     144   1024816               1 /run/shm
none            102400      32    102368               1 /run/user     

我可以这样称呼它吗:

Used = Format-FileSize(DisplayInBytes([decimal]$.Groups[3].Value))
Available = Format-FileSize(DisplayInBytes([decimal]$.Groups[4].Value))

Answer 1

看来您只需要其中之一。
像其他任何PowerShell命令一样调用它。 Command-Name -ParameterName $argumentValue:

New-Object -TypeName PSObject -Property @{
    Filesystem      = $_.Groups[1].Value
    '1024-blocks'   = [decimal]$_.Groups[2].Value
    Used            = DisplayInBytes -num ([decimal]$_.Groups[3].Value)
    Available       = DisplayInBytes -num ([decimal]$_.Groups[4].Value)
    CapacityPercent = [decimal]($_.Groups[5].Value -replace '\D')
    MountedOn       = $_.Groups[6].Value
}