Powershell to rename file based on output

Question

Good Afternoon
I was wondering if someone could assist with the below
1. We currently have a system in place whereby a document is scanned onto the system as an image and this is saved in a central location folder
2. I then run tesseract within powershell on this location folder, which is a program that can extract the image to txt file and this converts the image to a txt file and saves in the same location with the same name
3. What i would like to do is for powershell to then search the extracted txt file and look for a particular regexpression (which i have) and to then rename the original file from point 1 to the output
Is the above possible at all
This is what i have so far, what this seems to do is look in my ocr folder and run tesseract and the output txt files end up in the same folder
$TargetFolder1 = “c:\ocr\test\file.txt”
$regex = '[0-9]{5,6}[\.][0-9]{0,1}'
$result = out-file ("c:\OCR\Match\""imtest" + ".txt")
select-string -Path $Targetfolder1 -list -Pattern $regex | % { $_.Matches } | % { $_.Value } > $_result
cd "C:\Program Files (x86)\Tesseract-OCR"
Apologies of it seems confusing
Barrie

Answer 1

Hi
Many thanks for the info so far, much appreciated
I have read around on the Microsoft Powershell learning site but becoming slightly confused with some more piping
I previously mentioned that the tesseract program converts the ocr scanned tif file into a text file - Is it possible instead to have this output to a variable of some sort and then for my reg expression carry out the search in the variable and
then rename the tif file based on the result of the regexpression
Previously i have ran tesseract on a tif file via powershell which in turn produces a text file of the document in the file location
I think it would be best if i ran tesseract on the tif file, then for powershell to export the results somewhere and the reg expression query can be run and the final result will rename the original tif file with the output of the reg expression
Hope this makes sense and many thanks for help so far
Regards
Barrie