Chapters/basic-controller-scripts-and-menus/basicmenu-improved.ps1
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#a function based menu Function Invoke-MyMenu { [cmdletbinding()] Param() #start with a clear screen Clear-Host #define a here string for the menu options $menu = @" MyMenu -------------------------- 1. Get services 2. Get processes 3. Get System event logs 4. Check free disk space (MB) 5. Quit Select a menu choice "@ #Read-Host writes strings but we can specifically treat the result as #an integer [int]$r = Read-Host $menu #validate the value if ((1..5) -notcontains $r ) { write-warning "$r is not a valid choice" pause Invoke-Mymenu } elseif ((1..4) -contains $r) { #get computername for first four menu choices $Computername = Read-Host "Enter a computername or press Enter to use the localhost" if ($Computername -notmatch "\w+") { $computername = $env:COMPUTERNAME } } #code to execute Switch ($r) { 1 { Get-Service -computername $Computername } 2 { Get-Process -computername $Computername } 3 { Get-Eventlog -LogName System -Newest 25 -ComputerName $Computername } 4 { $c = Get-CimInstance -ClassName win32_logicaldisk -ComputerName $computername -filter "deviceid='c:'" $c.FreeSpace/1mb } 5 { Write-Host "Have a nice day" -ForegroundColor Green #bail out of the command Return } } #switch pause #re-run this function &$MyInvocation.MyCommand } #end function |