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LiveDemo.ps1
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LiveDemo.ps1
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<#
.Synopsis
Obtain disk usage reporter (uses du.exe from Sysinternals)
https://docs.microsoft.com/en-us/sysinternals/downloads/sysinternals-suite
.DESCRIPTION
Demo wrapper code using Sysinternals Disk Usage Tool. Demonstrates PowerShell's powers of amplification:
Predictablitiy - Verb-Noun naming
Discoverability - Built-in help w/Examples
Composability - Pipeline support
.PARAMETER Path
Specifies path to be checked for disk usage
.EXAMPLE
Get-ChildItem C:\scripts\ -Directory | Get-SysInternalsDiskUsage
.EXAMPLE
Get-ChildItem -Path (Join-Path -Path $env:USERPROFILE -ChildPath Downloads) -Directory -Recurse | Get-SysInternalsDiskUsage | Sort-Object -Property DirectorySize
.NOTES
Written during (and tweaked after) PowerShell Saturday RTPSUG (https://rtpsug.com/pssaturday) talk
'Why Can't We Be Friends: PowerShell & Command Line Utilities'
Author/Speaker:
- Ryan Leap
- GitHub: https://github.com/ryan-leap
- Twitter: @leap_ryan
#>
function Get-SysInternalsDiskUsage
{
[CmdletBinding()]
[Alias()]
[OutputType([pscustomobject])]
Param
(
# Path to directory
[ValidateScript({Test-path -Path $_ -PathType Container})]
[Alias('FullName')]
[Parameter(Mandatory=$true,
ValueFromPipelineByPropertyName=$true,
Position=0)]
[string] $Path
)
Begin
{
Write-Verbose "Begin block"
}
Process
{
Write-Verbose "Process block"
$result = & C:\Tools\SysInternalsSuite\du.exe -nobanner $Path 2>$null
[pscustomobject] @{
'Path' = $Path
'FileCount' = [int64] $result[0].Substring('Files: '.Length)
'DirectoryCount' = [int64] $result[1].Substring('Directories: '.Length)
'DirectorySize' = [int64] $result[2].Substring(0,$result[2].IndexOf(' bytes')).Replace(',','').Substring('Size: '.Length)
'DirectorySizeOnDisk' = [int64] $result[3].Substring(0,$result[2].IndexOf(' bytes')).Replace(',','').Substring('Size on disk: '.Length)
}
}
End
{
Write-Verbose "End block"
}
}