# ==============================================================================================
# 
# Microsoft PowerShell Source File -- Created with SAPIEN Technologies PrimalScript 2009
# 
# NAME: April09-OneLiner.ps1
# 
# AUTHOR: Jeffery Hicks, PowerShell MVP , SAPIEN Technologies, Inc.
# DATE  : 3/23/2009
# 
# COMMENT: 
# Here's another way to get disk utilization using your PSDrives. This is a one line command. 
# I've broken it up with the line continuation character.
# This only works locally and only queries PSDrives using the FileSystem provider and that 
# have a value for the Used property. 

# DISCLAIMER AND WARNING:
# 	THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
# 	KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# 	IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
#   TEST THOROUGHLY IN A NON-PRODUCTION ENVIRONMENT. IF YOU DON'T KNOW WHAT THIS
#   SCRIPT WILL DO...DO NOT RUN IT!
# 
# ==============================================================================================

Get-PSDrive -PSProvider filesystem | where {$_.used} |
select Root,@{name="Size(GB)";expression={($_.used+$_.free)/1GB -as [int]}},`
@{name="Used(GB)";expression={"{0:F2}" -f ($_.used/1GB)}},`
@{name="Free(GB)";expression={"{0:F2}" -f ($_.free/1GB)}},`
@{name="PercentFree";expression={"{0:P2}" -f ($_.free/($_.used+$_.free))}} 

#optionally pipe this to expression to Format-Table -AutoSize