PowerShell 7 Tutorials for Beginners #8 : ForEach (Loops)

In this video I will go over using a ForEach Loop in PowerShell 7.2 , we will see what a loop is and compare it against writing out each line out. We will also see 3 different ways to initiate a foreach loop in PowerShell and why it is very useful to use loops in programming/scripting.
Tags:
PowerShell, jackedprogrammer, powershell 7, how to install powershell 7, powershell 7 on vs code, visual studio code

[@OwlPharaoh7]

thank you so much. i'm learning powesrshell so i can write scripts for cyversecurity tasks. this is awesome content

[@Jon-rp4st]

I think there is no one better than you on UA-cam!
Thank you so much!

[@NigelStroopwafel]

I love the format of your videos. I've been learning PowerShell for a few months and your teaching style works so much better than other courses I've learned from. After watching your other videos, I was able to understand how to create the first foreach loop before you explained it. Keep up the good work and thank you!

[@ghostingalong]

I’m appreciative of these for sure

[@mrliuquantong4943]

This is the best I have ever seen on youtube these years!!

[@Jomster777]

Really big help on these tutorial videos. Thanks! I've now also learned how to delete multiple folders with the ForEach method as well.

[@richardgarrow9260]

Another great learning video thanks Jack

[@davidflint6917]

I tend to use the second method over the first, as that allows begin, process, end

[@oussamahernandez6503]

Thanks

[@BitPazzo]

Top youtuber!!! 👋 👋

[@ВикторЛарионов-й3к]

Top youtuber!!!

[@henrymdominguez]

Could you do a future video on a foreach loop that includes if else statements and PnPBatch? I've been scouring the internet for help with a script I'm writing to no avail.

[@XwolfBane18]

Hi Jack I have a question I have folder I want to synce for 15 users in sharepoint site , I have there username and password how do I go about scripting from my machine to make sure that folder is there when they sign into a device I’m new to script but I want to learn how to do it any guide would be appreciated

[@dmitryepikhin2784]

I don't speak English well, sorry, I use a Google translator.
I didn't understand where the $name came from here: foreach($name in $folderNames){... Tell me, please, what is $name means? I mean, we didn't set it as a variable before.

[@okeriesenbeck1936]

the $name is a temporary variable that is assigned to the element of the array at which the foreach-loop is currently at, for example if the array is @(1,2,3), in the first iteration of the loop $name is assigned to 1, in the second iteration $name is assigned to 2 and so on

[@lonedruid3360]

I tested it and shows first one is the fastest
#Fastest (1.13s)
foreach($no in 1..1000000){$no}
# (4.5s)
(1..1000000).ForEach( {$_} )
#slowest (9s)
1..1000000 | ForEach-Object { $_ }
i used measure-command to test it.

[@jackedprogrammer]

This is correct, if I were to make this again i would be recommeding the foreach($x in $array) as the fastest, measure-command is super useful good catch! :)

[@netor-3y4]

$filePath="C:\Scripts\8 - ForEach\Data\FolderNames.txt"
$foldersPath."C:\Scripts\8 - ForEach\Data\Share"
$folderNames=Get-Content -Path $filePath
foreach($name in $folderNames){
if((Test-Path -Path "$foldersPath\$name") -eq $false){
New-Item -Path "$foldersPath" -Name $name -ItemType Directory
}else{ Write-OutputI"Folder exists"
}
}
$folderNames | ForEach-Object -Process {
if((Test-Path -Path "$foldersPath\$_") -eq $false){
New-Item -Path "$foldersPath" -Name $_ -ItemType Directory
}else{ Write-Output "Folder exists" }
}
$FolderNames.ForEach(
{
if((Test-Path -Path "$foldersPath\$_") -eq $false){
New-Item -Path $foldersPath -Name $_ -ItemType Directory
}else{
Write-Output "Floder exit"
}
}
)