Search, Increment, Replace and Save to New Files - powershell

Question

I'm new to Powershell.
Let's say I have a file named Grocery_01.txt
And in this text file, there are several texts like;
Apple.1.Green
I want to change these texts to >> Apple.2.Green
And save it to a new txt file named Grocery_02.txt
Then, I want to repeat the process until I have a total of 99 files, with the last file named Grocery_99.txt which includes Apple.99.Green

Answer 1

Here is a sample for you. Assuming that your Grocery_01 file looks like
Apple.1.Green
Apple.2.Green
Banana.1.Red
Apple.10.Green
$apples = Get-Content C:\PS\Grocery_01.txt | Select-String -Pattern "Apple"
foreach ($line in $apples) {
$number = $line -replace '\D' #to get number from string
New-Item "C:\PS\Grocery_$number.txt" #create new file with the new number
Add-Content -Path "C:\PS\Grocery_$number.txt" -value $line
}
You may try this code and see if it suits your output.
Answer2:
In this case, I will use a CSV file for input and ForEach-Object to process each line.
Import-Csv C:\temp\grocerylist.csv | ForEach-Object {
for ($i = 1; $i -le $($_.Count); $i++) {
if (-not (Test-Path "C:\Temp\test\Grocery_$i.txt")) {
New-Item "C:\Temp\test\Grocery_$i.txt"
Add-Content -Path "C:\temp\test\Grocery_$i.txt" -Value "$($_.FruitName).$i.$($_.Colour)"
}
else {
Add-Content -Path "C:\temp\test\Grocery_$i.txt" -Value "$($_.FruitName).$i.$($_.Colour)"
}
}
}
And my CSV file will look like below(each heading in a different Column):
FruitName Count Colour
Apple 99 Green
Banana 25 Red
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