Powershell-Training/1.Basic/Learn Powershell in Less than 2 hours.md

Learn Powershell in Less Than 2 hours

Everything in Powershell is an Object

Widows Powershell ISE

To be able to write Powershell script you have a free IDE

CMDLET

Predifine functions are names CommandLet Verb-Noun -Parameters

If you want to see all the Cmdlet available

Get-Command -CommandTyper Cmdlet

PSVersionTable

you can see the version of powershell with the command

$PSVersionTable

ExecutionPolicy

To be able to see if you can run your Powershell scripts

Get-ExecutionPolicy
# Work only has administrator
Set-ExecutionPolicy remoteSigned

Write-Host

For writing in the console

Write-Host "Hello world"
Write-Host "Hello world" -NoNewline
Write-Host "Hello world" -BackgroundColor "Blue"

GetHelp

Print all the help articles from microsoft

Get-Help
Get-Help Write-Host -full

New-Item

For creating a new file or folder

# Create a file
New-Item -path C:\Scripts\ewok.txt -tye "File" -value "praise C3PO"

# Create a folder
New-Itemn -path C:\Scripts -name "deathstar" -type directory

Copy-Item

Copy a file

Copy-Item C:\Scripts\ewok.txt -destination C:\Scripts\deathstar

Move-Item

Change the place of a file

Move-Item -path ".\forewithwho.txt" -destination ".\deathstar\"

Remove-Item

Delete a file

Delete-Item -path ewok.txt 

Test-Path

Verify if a file exist and return a boolean can be helpful for a if statement

Test-Path C:\Scipts\deathstar\forewithwho.txt

Rename-Item

Rename a file

Rename-Item -path .\forewithwho.txt -newnae forewithme.txt

Piping

You can chain commands with "|"

Command-1 | Command-2
"May the force be with you!" | Out-File forewithwho.txt

Variables

They start with a "$" you can use strings,floating points, integer and boolean

$FavCharacter = "Spongebob"
$FavCharacter | Out-File favcharacter.txt
$FavCharacter.GetType()

$x = 5
$y = 3
$x + $y
# output: 8

$FavCharacter | Select-Object -Property *
# output all the Property of the variable 
Get-Member -InputObject $FaveCharacter
# output all the mehtods you can use 

Arrays

A collection of variables

$Jedi = @('Obi-Wan Kenobi', 'Luke Skywalker', 'Master Yoda', 'Mace Windu')

$Jedi.GetType()
# output Object[]

$Jedi[0]
# output : Obi-Wan Kenobi

$Jedi[0].Length
# output 14

$Jedi += 'Qui-Gon Jin'
# add a variable to the array

hash table

Specify keys

$FellowshipBeta = @{key1 = "item1"; key2 = "item2"}

$Fellowship = @{"Wizard" = "Gandalf"; "Elf" = "Legolas"; "Hobbit" =  "Frodo"}

$Fellowship.Add("Dwarf", "Gimli")
# for adding an element

$Fellowship.Set_Item("Dwarf", "Bilbo")
# changing an element

$Fellowship."Dwarf"
$Fellowship.["Dwarf"]
# retrieve an element

$Fellowship.Remove("Dwarf")
# Remove an element

Read-Host

for having user iput

Evaluatig

$PokemonCaught = "908"
If($PokemonCaught -eg 908) { Write-Host "You're a Pokemon Master! "}

Active directory

for importing active directory Commands

Import-Module ActiveDirectory

##User

New-ADUser

Create a user in active Directory

New-ADUser -Name "Luke Skywalker" -GivenName "Luke" -Surname "Skywalker" -SamAccountName "Luke Skywalker" -UserPrincipalName "lskywalker@maeds.org" -Path "OU=Administration, OU=Staff, OU=MAEDS,DC=maeds , DC=org" -AccountPassword(ConverTo-SecureString "UncleOwen!" -AsPlainText -force) -Enabled $true 

-Name "Luke Skywalker" The display name of the user in Active Directory.

-GivenName "Luke" The user’s first name.

-Surname "Skywalker" The user’s last name.

-SamAccountName "Luke Skywalker" The logon name used with older Windows systems (DOMAIN\username).

-UserPrincipalName "lskywalker@maeds.org" The modern logon name (email-style login).

-Path "OU=Administration, OU=Staff, OU=MAEDS, DC=maeds, DC=org" Specifies the Organizational Unit (OU) where the user will be created. DC specifies the domain name

-AccountPassword (ConvertTo-SecureString "UncleOwen!" -AsPlainText -Force) Sets the user’s password (converted into a secure format).

-Enabled $true Enables the account immediately after creation.

Get-ADUser

For having aformation about a user return basic information

Get-ADUser mrsh

# we can turn it to a variable
$user = Get-ADUser

# we can return information
$user.DistguishedName
$user.GivenName

# extract information
$user.GivenName | Out-File users.txt

Set-ADUser

add or replace informations about a user

Set-ADUser -Identity fbaggins -Surname Tyler

Set-ADAccountPassword

Change the password of a user

Set-ADAccountPassword -Identity lskywalker -Reset -NewPassword (ConverTo-SecureString -AsPlainText "OldBen123" -Force)

Add-ADGroupMember

Add a member to a group

Add-ADGroupMember - Identity Fellowship - Members fbaggins

Remove-ADGroupMember

Remove a member to the group

Remove-ADGroupMember - Identity Fellowship - Members fbaggins