PowerShell/docs/check-drive-space.md

Script: check-drive-space.ps1

This PowerShell script checks the given drive for free space left (10 GB by default).

Parameters

PS> ./check-drive-space.ps1 [[-driveName] <String>] [[-minLevel] <Int64>] [<CommonParameters>]

-driveName <String>
    Specifies the drive name to check (e.g. "C")
    
    Required?                    false
    Position?                    1
    Default value                
    Accept pipeline input?       false
    Accept wildcard characters?  false

-minLevel <Int64>
    Specifies the minimum level in bytes (10GB by default)
    
    Required?                    false
    Position?                    2
    Default value                10000000
    Accept pipeline input?       false
    Accept wildcard characters?  false

[<CommonParameters>]
    This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.

Example

PS> ./check-drive-space.ps1 C
✅ Drive C: has 442GB free (56% of 1TB used)

Notes

Author: Markus Fleschutz | License: CC0

Related Links

https://github.com/fleschutz/PowerShell

Script Content

<#
.SYNOPSIS
	Checks the drive space 
.DESCRIPTION
	This PowerShell script checks the given drive for free space left (10 GB by default).
.PARAMETER driveName
	Specifies the drive name to check (e.g. "C")
.PARAMETER minLevel
	Specifies the minimum level in bytes (10GB by default)
.EXAMPLE
	PS> ./check-drive-space.ps1 C
	✅ Drive C: has 442GB free (56% of 1TB used)
.LINK
	https://github.com/fleschutz/PowerShell
.NOTES
	Author: Markus Fleschutz | License: CC0
#>

param([string]$driveName = "", [int64]$minLevel = 10 * 1000 * 1000) # GB

function Bytes2String { param([int64]$bytes)
        if ($bytes -lt 1000) { return "$bytes bytes" }
        $bytes /= 1000
        if ($bytes -lt 1000) { return "$($bytes)KB" }
        $bytes /= 1000
        if ($bytes -lt 1000) { return "$($bytes)MB" }
        $bytes /= 1000
        if ($bytes -lt 1000) { return "$($bytes)GB" }
        $bytes /= 1000
        if ($bytes -lt 1000) { return "$($bytes)TB" }
        $bytes /= 1000
        return "$($bytes)PB"
}

try {
	if ($driveName -eq "" ) { $driveName = Read-Host "Enter the drive name to check" }

	$details = (Get-PSDrive $driveName)
        if (-not $IsLinux) { $driveName = $driveName + ":" }
	[int64]$free = $details.Free
        [int64]$used = $details.Used
        [int64]$total = ($used + $free)

	if ($total -eq 0) {
		Write-Host "✅ Drive $driveName is empty"
        } elseif ($free -eq 0) {
                Write-Host "⚠️ Drive $driveName with $(Bytes2String $total) is full"
        } elseif ($free -lt $minLevel) {
                Write-Host "⚠️ Drive $driveName with $(Bytes2String $total) is nearly full, $(Bytes2String $free) free"
        } else {
        	[int64]$percent = ($used * 100) / $total
                Write-Host "✅ Drive $driveName has $(Bytes2String $free) free ($percent% of $(Bytes2String $total) used)"
        }
	exit 0 # success
} catch {
	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}

(generated by convert-ps2md.ps1 using the comment-based help of check-drive-space.ps1 as of 05/19/2024 10:25:17)