Question

Exercise 2: Challenge Exercises

1. Write a Powershell script to Check If a Service is Installed and Working

2. Write a Powershell to Checks If a File Exists

3. Write a Powershel lfind all the dlls under the Windows folder

4: Write a script sorting process by their start time

5: Write a script to find all files last modified before a certain date. 6: Write a script to find the event log entries that occur most frequently.

7: Write a Powershell script to Count the Temporary Files

8: Write a Powershell script Windows Log Files with 'Errors'

9: Write a Powershell script to filter processes with over 200 handles

USE WINDOWS POWERSHELL, AND SHOW INPUT AND OUTPUT. ALSO SCREEN SHOT A PICTURE OF THE RESULT

Answer 1

SOLUTION-

(1):- Powershell script to Check If a Service is Installed and Working is given below:-

# Powershell script to Check If a Service is Installed and Working

Clear-Host

$sName = "alerter"
$service = Get-Service -display $sName -ErrorAction SilentlyContinue
If ( -not $service )
{$sName + " NOT INSTALLED ON THIS MACHINE. `n
Did you really mean: " + $sName }
else { $sName + " INSTALLED ON THIS MACHINE"
$sName + "'s status is: " + $service.Status }

-(2):-

Powershell Script to Checks If a File Exists

$strFileName="c:\ROBERT.txt"

If (Test-Path $strFileName){

# // File exists

}Else{

# // File does not exist

}

SOLUTION-(3):-Powershell Script to find all the dlls under the Windows folder

PS C:\Windows> Get-ChildItem c:\windows -include *.dll -recurse | foreach-object { "{0}" -f [System.Diagnostics.FileVersionInfo]::GetVersionInfo($

(4):-

Powershell Script to sorting process by their start time

PS C:Windowssystem32> Get-Process | sort startTime -ea silentlycontinue | ft name,
starttime –AutoSi

SOLUTION-(5):-Powershell Script to find all files last modified before a certain date

Get-ChildItem -Recurse | Where-Object { $_.LastWriteTime -lt "02/02/2018" }