Question

I am trying to rename multiple files in windows using powershell.
And I want to rename replacing this pattern:

“123456-the_other_part_of_the_string”.
Example:

409873-doc1.txt
378234-doc2.txt
1230-doc3.txt

Basically I want to crop the numbers + ‘-‘ thing.

Answer 1

Get-ChildItem . *.txt | Where {$_.Name -match '^\d+-(.*)'} | 
                        Rename-Item -NewName {$matches[1]}

or with aliases:

gci . *.txt | ?{$_.Name -match '^\d+-(.*)'} | rni -new {$matches[1]}