Run a Single Command

To run a command on the remote system, use the Invoke-Command cmdlet using the following syntax:

Invoke-Command -ComputerName COMPUTER -ScriptBlock { COMMAND } -credential USERNAME

“COMPUTER” represents the remote compoter's name or IP address. “COMMAND” is the command you want to run. “USERNAME” is the username you want to run the command as on the remote computer. You’ll be prompted to enter a password for the username.

Run a Script File

To run multiple commands, you can separate them with semicolons in the script block. However, a better option is to use the -FilePath option instead of the -ScriptBlock option, which allows you to execute an entire PowerShell script:

Invoke-Command -ComputerName COMPUTER -FilePath SCRIPTFILE -credential USERNAME

Run on multiple Computers

You can pass multiple computers to the -ComputerName parameter by separating their names with commas. If you also want to include the local computer, you add “localhost” or simply “.” to the list. 
Invoke-Command -ComputerName PC1,PC2,PC3 -ScriptBlock { COMMAND } -credential USERNAME
Invoke-Command -ComputerName PC1,PC2,PC3 -FilePath SCRIPTFILE -credential USERNAME

Passing local variables to the remote session 

If you want to pass variables from your control script on the local computer to the commands that run on the remote computers, you can work with the -ArgumentList parameter: 

$Name = "svchost"
$CPU = 100
Invoke-Command -ComputerName $RemoteComputer -ScriptBlock { param($RName,$RCPU) Get-Process -Name $RName | Where -Property CPU -gt $RCPU } -ArgumentList $Name,$CPU
In the example, the values of the $Name and $CPU variables are passed to the $RName and $RCPU variables, which the Get-Process cmdlet will use on the remote computer to determine all processes with the name “svchost” where the CPU usage (CPU property of Get-Process) is greater than 100.

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