China DOS Union

I took photos with a digital camera, and all the photo names are SAM_00**.JPG. How can I make a batch file to remove the SAM_ from all the photo names and turn them into 00**.JPG

Has everyone gone to sleep?

@echo off

setlocal EnableDelayedExpansion

for /f "delims=" %%i in ('dir /b /a-d *.jpg') do (

ren %%i !%%i:SAM_=!

)

pause

Give it a try, not guaranteed to work...

It doesn't work. After running it, it created a file called SAM_, and the batch file window shows "A duplicate file exists, or the file cannot be found"

OK.
set "str=%%i"
ren "%%i" "!str:SAM_=!"
)
Can you explain this piece of code in detail? I've been learning batch files for a while, but I mainly can't figure out FOR and SET

Originally posted by chinesechrist at 2010-8-3 22:07:
I took photos with a digital camera, and all the photo names are SAM_00**.JPG. How can I make a batch file to remove the SAM_ from all the photo names and turn them into 00**.JPG

This is very simple

ren sam_*.jpg "    *.jpg"

Tested and works on Windows XP sp3

Found that the poster above still didn't pass either , it actually created files whose names begin with half-width spaces.

Ignore this post!

[ Last edited by WANKOILZ on 2010-8-4 at 09:32 ]

ren sam_*.jpg " *.jpg"
Tested and works on Windows XP sp3
---------but the filename has four extra spaces

Originally posted by chinesechrist at 2010-8-4 17:59:
ren sam_*.jpg " *.jpg"
Tested and works on Windows XP sp3
---------but the filename has four extra spaces

Mm, yes, reply #8 already pointed that out. Inspired by this thread, I wrote a small tool for renaming files. I've temporarily named it xren.exe, using Jscript regex.

　　　Usage:　
　　　　　　xren file type filename-matching regex　　replacement filename

For example:　
1. Replace all half-width spaces in the names of all jpg files in the current directory with _

xren    jpg    "/ /gi"   "_" 

2. Add www.cn-dos.net to the beginning of the filenames of all TXT files in the current directory

xren    txt   "/^/"  www.cn-dos.net_

3. Remove the website address from all filenames of the form Story_www.example.com.txt

xren   txt   "/_www\.example\.com\.txt$/"    ".txt"

...

That's enough examples for now. By the way, xren jpg "/^SAM_/" can solve the OP's problem ;)

[ Last edited by freeants001 on 2010-8-4 at 21:56 ]

Thanks for your XREN, it's very good software

I still don't understand the specific usage rules, and xren /? doesn't show any help information,