I have always missed the option in windows to just easily see the uptime from a server.
Ofcourse we have the uptime.exe available from Microsoft, but I wanted to have something available directly from powershell.
For starters we could get the last bootuptime from WMI with the following query
(Get-WmiObject -Class win32_operatingsystem).lastbootuptime
20151005150834.490241+120
Since this is not really in a nice format, lets change it into something we can read
[System.Management.ManagementDateTimeconverter]::ToDateTime((Get-WmiObject -Class win32_operatingsystem).lastbootuptime)
Tuesday, October 6, 2015 10:37:14 AM
Now that we have the bootup time/date in a readable format we can substract this date from our current time/date to get our actual uptime.
((Get-Date)-([System.Management.ManagementDateTimeconverter]::ToDateTime((Get-WmiObject -Class win32_operatingsystem).lastbootuptime)))
Days : 0
Hours : 0
Minutes : 16
Seconds : 8
Milliseconds : 736
Ticks : 9687365862
TotalDays : 0.0112122290069444
TotalHours : 0.269093496166667
TotalMinutes : 16.14560977
TotalSeconds : 968.7365862
TotalMilliseconds : 968736.5862
And there you go, you can now see the uptime for your server. I took this along a bit and created a powershell function to make it more usable for everyone in the company.
Function Get-Uptime
{
<#
.SYNOPSIS
Get uptime for Server(s)
.DESCRIPTION
This script will provide you the uptime for your servers in easy format
.PARAMETER Servers
One or multiple servers
.EXAMPLE
Get-Uptime -Server "computername"
Request the uptime for a server
#>
[CmdletBinding(SupportsShouldProcess = $true)]
param(
[parameter(Mandatory = $true, HelpMessage = 'Please enter a computername.')]
[alias('Computernames','Computername','Server','Computer')]
[string[]]$servers
)
ForEach ($server in $servers)
{
Write-Verbose -Message "Retrieving information from $server"
$uptime = ((Get-Date )-([System.Management.ManagementDateTimeconverter]::ToDateTime((Get-WmiObject -Class win32_operatingsystem -ComputerName $server -ErrorAction SilentlyContinue ).lastbootuptime)))
$server | Select-Object -Property @{
Name = 'Computername'
Expression = {
$server
}
},
@{
Name = 'Days'
Expression = {
$uptime.Days
}
},
@{
Name = 'Hours'
Expression = {
$uptime.Hours
}
},
@{
Name = 'Minutes'
Expression = {
$uptime.Minutes
}
},
@{
Name = 'Seconds'
Expression = {
$uptime.Seconds
}
},
@{
Name = 'Milliseconds'
Expression = {
$uptime.Milliseconds
}
}
}
}
Now you only need to type Get-Uptime “servername” to get the uptime for the server you wish 🙂
PS C:\> get-uptime localhost | FT
Computername Days Hours Minutes Seconds Milliseconds
------------ ---- ----- ------- ------- ------------
localhost 0 19 49 32 478
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