Powershell script to show system uptime

[Ian]

I am trying to generate a powershell script that shows system uptime on a Window 11 PC, can you help please?

 

[AI Answer Bot]

Yes, I can definitely help you! Here is a simple PowerShell script that you can use to get the system uptime:

$OperatingSystem = Get-CimInstance -ClassName Win32_OperatingSystem
$LastBootUpTime = $OperatingSystem.LastBootUpTime
$CurrentTime = Get-Date
$Uptime = $CurrentTime - $LastBootUpTime
Write-Host "System Uptime: $($Uptime.Days) days, $($Uptime.Hours) hours, $($Uptime.Minutes) minutes, $($Uptime.Seconds) seconds"

This script does the following:
1. It uses the `Get-CimInstance` cmdlet to retrieve the system's LastBootUpTime property from the `Win32_OperatingSystem` class.
2. It retrieves the current time and calculates the difference between the current time and the LastBootUpTime property using the `-` operator.
3. Finally, it displays the system uptime in days, hours, minutes, and seconds using the `Write-Host` cmdlet.

Save the script with a .ps1 extension, and run it with elevated privileges (i.e., Run as Administrator) to ensure that you have the necessary permissions to retrieve this information.

I hope this helps! Let me know if you have any other questions.

 

[Ian]

I hope this helps! Let me know if you have any other questions.

That's great, thanks. Can you please modify the script so that it logs to a file called uptime.log, which includes the uptime and uptime start time/date?

 

[AI Answer Bot]

That's great, thanks. Can you please modify the script so that it logs to a file called uptime.log, which includes the uptime and uptime start time/date?

Yes, I can definitely help with that. Here's the modified script that logs the uptime and start time/date to a file called `uptime.log`:

$OperatingSystem = Get-WmiObject -Class Win32_OperatingSystem
$LastBootUpTime = $OperatingSystem.LastBootUpTime
$CurrentTime = Get-Date
$Uptime = $CurrentTime - $LastBootUpTime
$UptimeDays = $Uptime.Days
$UptimeHours = $Uptime.Hours
$UptimeMins = $Uptime.Minutes
$UptimeSecs = $Uptime.Seconds
$StartTime = $CurrentTime - $Uptime

Write-Host "System Uptime: $UptimeDays days, $UptimeHours hours, $UptimeMins minutes, $UptimeSecs seconds"

$Path = "C:\Logs\uptime.log"
$Content = "System Uptime: $UptimeDays days, $UptimeHours hours, $UptimeMins minutes, $UptimeSecs seconds" + "`r`n" + "Start Time/Date: $StartTime"

Add-Content $Path $Content

This script does the following:
1. It uses the `Get-WmiObject` cmdlet to retrieve the system's `LastBootUpTime` property from the `Win32_OperatingSystem` class.
2. It retrieves the current time and calculates the difference between the current time and the `LastBootUpTime` property using the `-` operator.
3. It formats the uptime values as days, hours, minutes, and seconds and sets them to variables.
4. It calculates the start time/date by subtracting the uptime from the current time.
5. It displays the system uptime in days, hours, minutes, and seconds using the `Write-Host` cmdlet.
6. It sets the log file path and content.
7. It appends the uptime and start time/date to the log file using the `Add-Content` cmdlet.

Make sure to replace `C:\Logs\uptime.log` with the desired file path for the log file.

I hope this helps! Let me know if you have any other questions.

 

[mschnidman]

Yes, I can definitely help with that. Here's the modified script that logs the uptime and start time/date to a file called uptime.log:

$OperatingSystem = Get-WmiObject -Class Win32_OperatingSystem
$LastBootUpTime = $OperatingSystem.LastBootUpTime
$CurrentTime = Get-Date
$Uptime = $CurrentTime - $LastBootUpTime
$UptimeDays = $Uptime.Days
$UptimeHours = $Uptime.Hours
$UptimeMins = $Uptime.Minutes
$UptimeSecs = $Uptime.Seconds
$StartTime = $CurrentTime - $Uptime

Write-Host "System Uptime: $UptimeDays days, $UptimeHours hours, $UptimeMins minutes, $UptimeSecs seconds"

$Path = "C:\Logs\uptime.log"
$Content = "System Uptime: $UptimeDays days, $UptimeHours hours, $UptimeMins minutes, $UptimeSecs seconds" + "`r`n" + "Start Time/Date: $StartTime"

Add-Content $Path $Content

This script does the following:
1. It uses the Get-WmiObject cmdlet to retrieve the system's LastBootUpTime property from the Win32_OperatingSystem class.
2. It retrieves the current time and calculates the difference between the current time and the LastBootUpTime property using the - operator.
3. It formats the uptime values as days, hours, minutes, and seconds and sets them to variables.
4. It calculates the start time/date by subtracting the uptime from the current time.
5. It displays the system uptime in days, hours, minutes, and seconds using the Write-Host cmdlet.
6. It sets the log file path and content.
7. It appends the uptime and start time/date to the log file using the Add-Content cmdlet.

Make sure to replace C:\Logs\uptime.log with the desired file path for the log file.

I hope this helps! Let me know if you have any other questions.

Please modify to capture an entire domain.

 

[AI Answer Bot]

Please modify to capture an entire domain.

If you want to capture the uptime for all the computers in a domain, you'll need to modify the original script to loop through all the computers in the domain and retrieve their individual uptime. Here's an updated script that can accomplish that:

$domain = "yourdomain.com" # Replace with your domain name
$cred = Get-Credential # Enter Domain Admin credentials

$computerList = Get-ADComputer -Filter * -Credential $cred -Server $domain | Select-Object -ExpandProperty Name

foreach ($computer in $computerList) {
    $OperatingSystem = Get-WmiObject -ComputerName $computer -Credential $cred -Class Win32_OperatingSystem
    $LastBootUpTime = $OperatingSystem.LastBootUpTime
    $CurrentTime = Get-Date
    $Uptime = $CurrentTime - $LastBootUpTime
    $UptimeDays = $Uptime.Days
    $UptimeHours = $Uptime.Hours
    $UptimeMins = $Uptime.Minutes
    $UptimeSecs = $Uptime.Seconds
    $StartTime = $CurrentTime - $Uptime

    Write-Host "System Uptime for $computer: $UptimeDays days, $UptimeHours hours, $UptimeMins minutes, $UptimeSecs seconds"

    $Path = "C:\Logs\uptime.log"
    $Content = "Computer Name: $computer" + "`r`n" + "System Uptime: $UptimeDays days, $UptimeHours hours, $UptimeMins minutes, $UptimeSecs seconds" + "`r`n" + "Start Time/Date: $StartTime"

    Add-Content $Path $Content
}

This script does the following:
1. It specifies the domain name and domain admin credentials using the Get-Credential cmdlet.
2. It uses the Get-ADComputer cmdlet to retrieve a list of all computers in the domain and selects their names.
3. It loops through each computer in the list.
4. It retrieves the system's LastBootUpTime property from the Win32_OperatingSystem class.
5. It retrieves the current time and calculates the difference between the current time and the LastBootUpTime property using the - operator.
6. It formats the uptime values as days, hours, minutes, and seconds and sets them to variables.
7. It calculates the start time/date by subtracting the uptime from the current time.
8. It displays the system uptime for each computer using the Write-Host cmdlet.
9. It sets the log file path and content, including the computer name.
10. It appends the computer name, uptime, and start time/date to the log file for each computer in the list using the Add-Content cmdlet.

Make sure to replace yourdomain.com with the appropriate domain name and provide the appropriate credentials. Also, replace C:\Logs\uptime.log with the desired file path for the log file.

I hope this helps! Let me know if you have any other questions.