147 lines
3.1 KiB
Markdown
147 lines
3.1 KiB
Markdown
# Powershell scripting
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Use PowerShell ISE to develop PowerShell scripts
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## Comparison operators
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| operator | description |
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| -------- | ----------- |
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| -eq | equals |
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| -ne | not equals |
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| -gt | greather than |
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| -ge | greater or equals to |
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| -lt | less than |
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| -le | less or equals to |
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## Arrays
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Initialise arrays like this:
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```
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$(arrayname) = @("item1", "item2", "item3")
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```
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There are two methods for looping over arrays:
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**Method 1**
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```
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foreach ($(itemname) in $(arrayname)) {
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(command)
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//To get the item from the array use $(itemname)
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}
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```
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**Method 2**
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```
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for ($i = 0; $i -lt $(arrayname).count; $i++) {
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(command)
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//To get the item from the array use $(arrayname)[$i]
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}
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```
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## Operations in the filesystem
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Test whether a file or directory exists
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```
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Test-Path "(path)"
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```
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### files
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Create a new file
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```
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New-Item -Path "(filepath)" -ItemType File
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```
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Remove a file
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```
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Remove-Item "(filepath)"
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```
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Set file content
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```
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Set-Content "(filepath)" ("(content)")
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```
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Example using multiple lines
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```
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Set-Content "C:\temp\test.txt" ("This is a very complex sentence. " + "`r`n" + "This sentence should be on the second line.")
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```
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Apend content to a file
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```
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Add-Content "(filepath)" ("(content)")
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```
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Show a file's content
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```
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Get-Content "(filepath)"
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```
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### directories
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Create new directory
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```
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New-Item -Path "(directorypath)" -ItemType Directory
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```
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Remove directory including contained files
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```
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Remove-Item "(directorypath)" -Recurse
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```
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Copy directory
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```
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Copy-Item "(inputpath)" -Recurse "(destinationpath)"
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```
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## Remoting
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Documentation:
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[Powershell Remoting](https://docs.microsoft.com/en-us/powershell/scripting/learn/ps101/08-powershell-remoting?view=powershell-7.1#one-to-many-remoting)
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[Running Remote Commands](https://docs.microsoft.com/en-us/powershell/scripting/learn/remoting/running-remote-commands?view=powershell-7.1)
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### Allow recieving remote commands
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Run as Administrator
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IMPORTANT: Network must not be set to public
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```
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Enable-PSRemoting
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```
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### Add to trusted list
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Clients have to be added to the trusted list if there are no other authentication methods used.
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Multiple clients can be added when separated by commas.
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*Note: The command below overwrites every other value set in "trustedhosts".*
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```
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Set-Item WSMan:localhost\client\trustedhosts -value '(ip address/hostname)'
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```
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Example:
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```
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Set-Item WSMan:localhost\client\trustedhosts -value '192.168.1.117,win10-2-lin,192.168.1.118,win10-3-lin'
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```
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### Run command on multiple remote pcs
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```
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Invoke-Command -ComputerName (pc1), (pc2) -ScriptBlock {(command)}
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```
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```
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Invoke-Command -ComputerName (pc1), (pc2) -ScriptBlock {(command1)
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(command2)}
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```
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Example for issuing multiple commands after each other:
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">>" is added automatically on newline
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```
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Invoke-Command -ComputerName win10-2-lin, win10-3-lin -ScriptBlock {cd c:\Users\admin
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>> New-Item "test.txt" -ItemType File}
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```
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### Run script on multiple remote pcs
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```
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Invoke-Command -ComputerName (pc1), (pc2) -FilePath 'path\to\script'
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```
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