Number of windows servers reboot time through PowerShell scripting

Question

This code is using for one server ----Get-WmiObject win32_operatingsystem | select csname, @{LABEL='LastBootUpTime';EXPRESSION={$_.ConverttoDateTime($_.lastbootuptime)}}
How to get more than one server reboot time through PowerShell scripting? 
cheers
uday

Answer 1

#Method 1#When you have few servers which you can quicly type
'localhost' , 'localhost' | %{Get-WmiObject win32_operatingsystem |
select csname, @{LABEL='LastBootUpTime';EXPRESSION={$_.ConverttoDateTime($_.lastbootuptime)}}}
#Mehod 2#When you have huge list you can make csv with header and use $_.headername
Import-CSV C:\Temp\Serverlist.csv | %{Get-WmiObject win32_operatingsystem -ComputerName $_.ServerName |
select csname, @{LABEL='LastBootUpTime';EXPRESSION={$_.ConverttoDateTime($_.lastbootuptime)}}}
#Method 3
#Same as method 2 but using text file
$pc = Get-Content C:\Temp\Serverlist.txt
foreach($server in $pc){
Get-WmiObject win32_operatingsystem -ComputerName $server |
select csname, @{LABEL='LastBootUpTime';EXPRESSION={$_.ConverttoDateTime($_.lastbootuptime)}}
Regards Chen V [MCTS SharePoint 2010]