running script on remote machine - powershell

Question

I am making a menu using a switch statement with options 1-9. The options are:
report computer name and the os version,
report on disk space,
report on folderspace for a specified folder,
create a folder and copy all text files from a folder,
create local user and
start or stop a service.
set IP address,
test connectivity to a machine,
exit.
I already have it working on a local machine but I would like to be able to use the options 1-6 on a remote machine. I am not sure how to do this.
do
{
Show-Menu
$input = Read-Host "Select 1-9"
switch ($input)
{
'1' {
cls
Write-Host -NoNewLine "OS Version: "
Get-CimInstance Win32_OperatingSystem | Select-Object Caption | ForEach{ $_.Caption }
Write-Host ""
Write-Host -NoNewLine "Computer Name: "
Get-CimInstance Win32_OperatingSystem | Select-Object CSName | ForEach{ $_.CSName }
Write-Host ""
} '2' {
cls
gwmi win32_logicaldisk | Format-Table DeviceId, MediaType, #{n="Size";e={[math]::Round($_.Size/1GB,2)}},#{n="FreeSpace";e={[math]::Round($_.FreeSpace/1GB,2)}}
} '3' {
$Path = Read-Host -Prompt 'Please enter the folder name:'
if($Path) {
Write-Host "string is not empty"
}
$colItems = Get-ChildItem $Path | Where-Object {$_.PSIsContainer -eq $true} | Sort-Object
foreach ($i in $colItems)
{
$subFolderItems = Get-ChildItem $i.FullName -recurse -force | Where-Object {$_.PSIsContainer -eq $false} | Measure-Object -property Length -sum | Select-Object Sum
$i.FullName + " -- " + "{0:N2}" -f ($subFolderItems.sum / 1MB) + " MB"
}
else {
Write-Host "String is EMPTY or NULL"
}
}'4' {
cls
# Specify the path
$destDir = Read-Host -Prompt 'Please enter the new folder name: '
#check that input is not empty
if($destDir) {
Write-Host "string is not empty"
}
else {
Write-Host "String is EMPTY or NULL"
}
# Check if the folder exist if not create it
$dir = $destDir
if(!(Test-Path -Path $dir )){
New-Item -ItemType directory -Path $dir
Write-Host "New folder created"
}
else
{
Write-Host "Folder already exists"
}
# Check if the folder exist if not create it
If (!(Test-Path $destDir)) {
md $dir
}
$sourceDir=Read-Host -Prompt 'Please enter the folder you want to copy files from: '
Copy-Item -path $sourceDir\*.txt -Destination $destDir
Write-Host "Text files copied to $destDir"
} '5' {
cls
$Computername = $env:COMPUTERNAME
$ADSIComp = [adsi]"WinNT://$Computername"
$Username = 'TestProx'
$Username = Read-Host -Prompt 'Please enter the New User'
$NewUser = $ADSIComp.Create('User',$Username)
#Create password
$Password = Read-Host -Prompt "Enter password for $Username" -AsSecureString
$BSTR = [system.runtime.interopservices.marshal]::SecureStringToBSTR($Password)
$_password = [system.runtime.interopservices.marshal]::PtrToStringAuto($BSTR)
#Set password on account
$NewUser.SetPassword(($_password))
$NewUser.SetInfo()
}'6' {
cls
$Display = Read-Host -Prompt 'Please enter service name: '
if($Display) {
Write-Host "string is not empty"
$Choice = Read-Host -Prompt 'Would you like to start or stop the service'
If ($Choice -eq 'start') {
Start-Service -displayname $Display
Write-Host $Display "Starting..." -ForegroundColor Green
}
If ($Choice -eq 'stop') {
Stop-Service -displayname $Display
Write-Host $Display "Stopping..." -ForegroundColor Green
}
}
else {
Write-Host "String is EMPTY or NULL"
}
}'7' {
cls
$IP = Read-Host -Prompt 'Please enter the Static IP Address. Format 192.168.x.x'
$MaskBits = 24 # This means subnet mask = 255.255.255.0
$Gateway = Read-Host -Prompt 'Please enter the defaut gateway IP Address. Format 192.168.x.x'
$Dns = Read-Host -Prompt 'Please enter the DNS IP Address. Format 192.168.x.x'
$IPType = "IPv4"
# Retrieve the network adapter that you want to configure
$adapter = Get-NetAdapter | ? {$_.Status -eq "up"}
# Remove any existing IP, gateway from our ipv4 adapter
If (($adapter | Get-NetIPConfiguration).IPv4Address.IPAddress) {
$adapter | Remove-NetIPAddress -AddressFamily $IPType -Confirm:$false
}
If (($adapter | Get-NetIPConfiguration).Ipv4DefaultGateway) {
$adapter | Remove-NetRoute -AddressFamily $IPType -Confirm:$false
}
# Configure the IP address and default gateway
$adapter | New-NetIPAddress `
-AddressFamily $IPType `
-IPAddress $IP `
-PrefixLength $MaskBits `
-DefaultGateway $Gateway
# Configure the DNS client server IP addresses
$adapter | Set-DnsClientServerAddress -ServerAddresses $DNS
}'8' {
cls
$Server = Read-Host -Prompt 'Please enter server name.'
if (Test-Connection $Server -Count 1 | Out-Null) { write-host "true" } else {write-host "false"}
}'9' {
return
}
}
pause
}
until ($input -eq '9')

Answer 1

The simplest way to perform remote execution is with PSSession:
Enter-PSSession remote_server_name
ls #returns results on remote server
Exit-PSSession
You could also use Invoke-Command:
Invoke-Command remote-server-name { ls }