Powershell rename multiple files in bulk (replace .txt with _,txt)

Question

How to Rename multiple files that I have from 1.txt, 2.txt to something like 1_A.txt 2_A.txt I tried the code below but it didn't work

dir | rename-item -NewName {$_.name -replace ".txt ","_A.txt"}

Can someone give me some guidance how to do this, since I have 100 files to rename

There's a trailing space in your search regex. Also, for robustness you should escape `.` as `\.` and anchor the match at the end of the string (`$`): `dir | rename-item -NewName { $_.name -replace '\.txt$', '_A.txt' }` — mklement0, Oct 21 '20 at 22:41

score 1 · Answer 1 · answered Oct 22 '20 at 00:11

1

…and based upon your cmd tag:

for %I in ("*.txt") do @ren "%I" "%~nI_A%~xI"

answered Oct 22 '20 at 00:11

Compo

Io-oI · Answer 2 · 2020-10-22T02:26:21.620

0

You can use PowerShell:

 Replace:
             $_.name -replace ".txt ","_A.txt"
      To: 
             ($_.basename+'_A.txt')

 ls *.txt | ? {ren $_.fullname -New ($_.basename+'_A.txt')}

edited Oct 22 '20 at 02:26

answered Oct 22 '20 at 02:03

Io-oI

2 Answers2