How to use PowerShell foreach

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This video introduces you to using the PowerShell statement foreach for looping through a collection of objects. Not to be confused with Foreach-Object which is covered in a different video, even though the two are very, very similar.

Video on using ForEach-Object

Vidoe on using PowerShell Aliases

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No article on the whole Internet has explained the ForEach as good as this video Shane, please please keep them coming.

bnisrael

what really helped me was how you really took the time to explain how $object variable worked. The way i understood it was basically when you start a foreach statement that tells powershell that whatever the first variable in the parentheses is, is basically the variable to be able to cycle through all the objects in the previously declared variable such as $ourobjectsarray

michaelbartnicki

I learnt my first foreach script. Thank you

charlesandrews

You saved my day, listening into first 4 minutes i saw where I made a mistake in my own baked ps1 script. Thanks.

gerardguinee

Super awesome explanation. Since I have found your videos I have made way and way more progress than from the book alone that I bought. I'll try to put as much of what I learn into actual practice.

talosvalcoran

Always informative, compact and good stuff, thanks Shane for sharing your knowledge

eivenhoe

Have to say that has finally got for each working in my brain, the whole $object $dog thing really worked, that was the bit I could never figure out

Jes

Amazing videos as usual!
Do you have any powershell series related to directories, files and file servers, permissions...?

TiteufMela

This is a great series on powershell. Thank you Shane. Do you have training on Active Directory - RBAC?

lightalwayz

thank you for a well explained video. that $object/$dog variable had me pulling my hair off everytime!!

tendyfish

Thanks Shane, great video. Do you have any tutorials that show us how to add a new property/value into an object during a ForEach?

sufferinglamb

Why did you separate the brackets to individual lines between Line 22 and 24?

academyministorage

Hi, thanks. This helped me a lot.

I have an question, i have an similar scenario, i have an method which will invoke an restapi. In the main function i have added the foreach loop with a CSV file while includes two values (.id1 and .id2) which should be passed into rest API request.
I'm getting 502 bad gateway error while doing that.

The same API works fine on postman with collection runner

timepassguys

One thing I find myself doing is saying in sync with you "And our intro'

ZoomZip

Hi Shane. First time using Powershell and I need your advice. I have multiple files in a directory I want to create a script that reads in the directory path and for each file in the directory, I want to check if the content of the files have a non ascii character. If there is a non ascii character I want to then write the file name to a output file. I found this scrpt in stackoverflow

$nonASCII = "[^\x00-\x7F]"
foreach ($_ in
if ($_ -cmatch $nonASCII){
write-output $_ | out-File $output -append
}
}

Issue I have is how to I pass the directory and the files to $source?

dagma

Great Video share, i learn a lot, the easy way ! Wouldn;t be great if you post the link to the powershell you explained to Github or your site, like a blog ? Would be easy to execute and get out exercises !

PabloVillaronga

What Im confused about is the .ojectpropertyname. For some reason that doesnt work for me? is that a property that can go at the end of any alias or does that need to be defined somewhere?

IsaiasPerez

Hi, want help for an CSV file in which a column contains numbers, need to add a add a comment as "compliant" for the numbers between n to n-3, number below n-4 will be tagged "non-compliant".
Suppose if today's latest version is 2111 then the lines with 2111, 2110, 2109, 2108 are compliant & the number below 2107 are non compliant.
Please help.

SourabhShah

I reversed engineered the foreach command

start of command

<# $b is the array in this example #> $b="6", "3", "99"
<# $n is the way we go through each row of the array. #> $n=0
while($n -le $b.count){ <# $h is the customizable variable in foreach. #> $h=$b[$n];$n+=1
#do whatever you want below here but anything to do with $n. Basically don't mess with $n.
echo $h
} #end of foreach loop
#everything below here is necessary to make sure that there are no unnecessary variables left.
$n=$null
$h=$null

End of command

Output:
6
3
99

the foreach equivalent of this:

$b="6", "3", "99"
foreach($h in $b){
echo $h
}

I know it takes a whole lot less using the foreach command in this example, but mine has a whole lot more customization. For example you couldn't have possibly gotten this output from a foreach command easily.

6
99

With mine though, you can do this easily. Just change the $n+=1 to $n+=2 and done.

codyf

when i did any changes in .ps1 file, those changes not working in first time. if I run again
then working. please solve my issue. i want first time work how?

sushmamandala

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