China DOS Union

I have some files named
mm-66.mp3
mm-67.mp3
mm-68.mp3
I want to change them to
mm-66.mp3
mm-67.mp3
mm-68.mp3

I know this is just how it displays. But I don't know why it displays as " mm-66 3 " " mm-67 3 " " mm-68 3 "

@echo off

for /f  "tokens=1,2 delims=" %%i in ('dir /b *.mp3' do echo %%i %%j

@echo\

pause

ren ?

@echo off

for /f  "tokens=2 delims=" %%i in ('dir /b *.mp3' do ren ... 

pause

[ Last edited by dosz on 2009-3-14 at 09:35 ]

"delims=" treats single characters as delimiters, not a string.
What you want can be done with one command, no need to make it so complicated:
ren *.mp3 ?????.*

Originally posted by netbenton at 2009-3-14 09:38:
"delims=" treats single characters as delimiters, not a string.
What you want can be done with one command, no need to make it so complicated:
ren *.mp3 ?????.*

"delims="delimiter"" can be a whole character set, please look at the following example:

:: for rename mp3 filenames

@mode con cols=82 lines=33

@echo off

echo for /f  "tokens=1,2 delims=" %%i in ('dir /b *.mp3') do echo %%i %%j

for /f  "tokens=1,2 delims=" %%i in ('dir /b *.mp3') do echo %%i %%j

@echo\

echo for /f "delims=










[ Last edited by dosz on 2009-3-15 at 03:36 ]

re: htnetbenton
Take a look here http://cn-dos.net/forum/viewthread.php?tid=46633

It supports a character set, but not a string. Look carefully: the later "mp3" also loses the "mp",
and if the string you want to extract contains characters from that character set, it will also get split.

================================
Thanks, now I understand what's going on with that signature.

for /r %%i in (*.mp3) do (
for /l %%j in (1,1,100) do ren %%i mm-%%~j.mp3
)
Like this?

[ Last edited by 313885174 on 2009-3-16 at 00:39 ]