**PowerShell** is a command-line shell and scripting language.

In this shot, we will learn how to use **`ForEach-Object`** in PowerShell.



#     
## Definition
**`ForEach-Object`** is a cmdlet in PowerShell that is used to iterate through a collection of objects.

You can use the `$_` operator to access the current object.

#    
## Syntax
```
ForEach-Object {todo operation}
```
* Use `ForEach-Object` on any output as a collection.
* Provide the `operation` you want to perform on each object in between curly braces `{}`.


#  
## Return value
`ForEach-Object` has no return value and will only perform operations on the provided collection of objects.


#    
## Example
In this example, we will try to use `ForEach-Object` to find the sum of the numbers from `1` to `100`.

#declare variable sum
$sum = 0

#loop through numbers and add it to sum
1..100 | ForEach-Object { $sum += $_}

#print
$sum

#    
## Explanation
In the code snippet above:

* *Line 2*: Declare and initialize a variable `sum`.
* *Line 5*: Use `ForEach-Object` to traverse every number from `1` to `100` and add current number `$_` to `sum`.
The pipe operator `|` will provide the output of `1..100` to `ForEach-Object`.
* *Line 8*: Print the sum.

#    
## Output
When you run the code snippet above in PowerShell, it will print `5050`.

#     
## Definition
**`ForEach-Object`** is a cmdlet in PowerShell that is used to iterate through a collection of objects.

You can use the `＄_` operator to access the current object.

#    
## Explanation
In the code snippet above:

* *Line 2*: Declare and initialize a variable `sum`.
* *Line 5*: Use `ForEach-Object` to traverse every number from `1` to `100` and add current number `＄_` to `sum`.
The pipe operator `|` will provide the output of `1..100` to `ForEach-Object`.
* *Line 8*: Print the sum.

What is ForEach-Object in PowerShell?

ForEach-Object in PowerShell iterates through a collection, using $_ for the current object, and performs specified operations within {}. 
