Question

I do not know how to: D. Apply exception handling using try-catch for System.OutOfMemoryException.

the code i have in POWERSHELL:

while($true)
{
$input= Read-Host "Enter the option 1-5"
if ($input -eq 5)
{
break
}

#B. Create a “switch” statement that continues to prompt a user by doing each of the following activities, until a user presses key 5:
switch ( $input ){
#Using a regular expression, list files within the Requirements1 folder, with the .log file extension and redirect the results to a new file called “DailyLog.txt” within the same directory without overwriting existing data. Each time the user selects this prompt, the current date should precede the listing. (User presses key 1.)
1 {
$temp= Get-Date
$answer = Get-ChildItem | Where-Object { $_.Name -match "[A-Z,a-z,0-9]*[.][l][o][g]" }
echo $temp $answer
echo $temp $answer >> DailyLog.txt
}
#List the files inside the “Requirements1” folder in tabular format, sorted in ascending alphabetical order. Direct the output into a new file called “C916contents.txt” found in your “Requirements1” folder. (User presses key 2.)
2 {
$answer = Get-ChildItem | Sort-Object -Property name | select name
echo $answer
echo $answer >> C916contents.txt
}
#Use counters to list the current CPU % Processor Time and physical memory usage. Collect 4 samples with each sample being 5 seconds intervals. (User presses key 3.)
3 {
Get-Counter -Counter '\Process(_total)\% Processor Time' -MaxSamples 4 -SampleInterval 5
Get-Counter -Counter '\Memory\Committed Bytes' -MaxSamples 4 -SampleInterval 5
}
#List all the different running processes inside your system. Sort the output by processor time in seconds greatest to least, and display it in grid format. (User presses key 4.)
4 {
Get-Process | Sort-Object -Property cpu
}
}

Answer 1

Working code implemented in Powershell and appropriate comments provided for better understanding.

Source Code:

<#
.SYNOPSIS
Problem 1 script to demonstrate prompt mechanics

.DESCRIPTION
A.     Create a PowerShell script named “prompts.ps1” within the “Requirements1” folder.
   For the first line, create a comment and include your first and last name along
   with your student ID.

   Note: The remainder of this task should be completed within the same script file,
   prompts.ps1.

B.     Create a “switch” statement that continues to prompt a user by doing each of the
   following activities, until a user presses key 5:

   1.    Using a regular expression, list files within the Requirements1 folder, with the
       .log file extension and redirect the results to a new file called “DailyLog.txt”
       within the same directory without overwriting existing data. Each time the user
       selects this prompt, the current date should precede the listing. (User presses key 1.)

   2.     List the files inside the “Requirements1” folder in tabular format, sorted in
       ascending alphabetical order. Direct the output into a new file called
       “C916contents.txt” found in your “Requirements1” folder. (User presses key 2.)

   3.    Use counters to list the current CPU % Processor Time and physical memory usage.
       Collect 4 samples with each sample being 5 seconds intervals. (User presses key 3.)

   4.     List all the different running processes inside your system. Sort the output by
       processor time in seconds greatest to least, and display it in grid format.
       (User presses key 4.)

   5.     Exit the script execution. (User presses key 5.)

C.     Apply exception handling using try-catch for System.OutOfMemoryException.

.NOTES
Version:   1.0
Author:   Your Name
Creation Date: 14-10-2020
#>

# Requires -version 2

## PARAMETERS

## VARIABLES

$n = 0

## FUNCTIONS

Function Out-LogFiles {
   Param(
       [string]$requiredFilesPath = ".\Requirements1"
   )
  
   $logFiles = Get-ChildItem $requiredFilesPath | Where-Object name -like *.log
   "Log file created " + (Get-Date) | Out-File -Append -FilePath .\Requirements1\DailyLog.txt
   $logFiles | Out-File -Append .\Requirements1\DailyLog.txt
  
}

Function List-AllFiles {
   Param(
       [string]$requiredFilesPath = ".\Requirements1"
   )
  
   $logFiles = Get-ChildItem $requiredFilesPath | Sort-Object Name -descending | Format-Table
   $logFiles | Out-File .\Requirements1\C916contents.txt  
  
}

## EXECUTION
Try
{
   while ( $n -ne 5)
   {
       write-host -ForegroundColor DarkCyan '1. List log files within the Requirements1 folder.

2. List the files inside the Requirements1 folder.

3. List the current CPU %, Processor Time, and physical memory usage.
  
4. Display running processes.
      
5. Exit the script execution.
'
       $n = Read-Host -Prompt '>> Select a Number'
       switch -Exact ($n)
       {
           1 {Out-LogFiles(".\Requirements1")}
           2 {List-AllFiles(".\Requirements1")}
           3 {Get-Counter -SampleInterval 5 -MaxSamples 4}
           4 {Get-Process | Select-Object Name, ID, TotalProcessorTime | Sort-Object TotalProcessorTime -Descending | Format-Table}
           5 {}
       }
   }
}
Catch [System.OutOfMemoryException]
{
   Write-Host -ForegroundColor $_.Exception.Message
}

Code Screenshots: