China DOS Union

Is there a way to take all the content before the last _ as one token and the content after as another token? Please teach...

```
@echo off
for /r %%i in (*.mp3) do (
set nm=%%~ni
call :js
call ren "%%i" "%%nm%%.mp3"
)
pause

:js
set nm=%nm:*_=%
echo %nm%|find "_">nul 2>nul&&goto js||goto :eof
```

Try the following one. If the string after the last _ character in the file name contains spaces, replace the spaces with "#":

@echo off & setlocal EnableDelayedExpansion

for %%a in (*.mp3) do (

	set file_name=%%a

	set file_rname=!file_name: =#!

	set file_rname=!file_rname:_=;!

	for %%b in (!file_rname!) do set new_file_name=%%b

	rename "!file_name!" "!new_file_name!"

)

Improve it or you can not replace spaces:

@echo off & setlocal EnableDelayedExpansion

for %%a in (*.mp3) do (

	set file_name=%%a

	set file_rname=!file_name: =#!

	set file_rname=!file_rname:_=;!

	for %%b in (!file_rname!) do set new_file_name=%%b

	set new_file_name=!new_file_name:#= !

	rename "!file_name!" "!new_file_name!"

)

Hehe, thank you two, after testing, both achieved the effect!

To wudixin96: I am shallow, brother's move is too advanced, I don't quite understand the echo %nm%|find "_">nul 2>nul&&goto js.

To lxmxn: You can come up with such an idea, you are a talent, PF!

Brother's efficiency is very high, much stronger than mine. However, if the characters after the last _ contain #, they will be replaced with spaces.

Originally posted by wudixin96 at 2007-9-19 10:38:
lxmxn
Your efficiency is very high, much stronger than mine. However, if the characters after the last _ contain #,
it will be replaced with a space.

Improve it further:

@echo off & setlocal EnableDelayedExpansion

for %%a in (*.mp3) do (

	set file_name=%%a

	set file_rname=!file_name: =\!

	set file_rname=!file_rname:_=;!

	for %%b in (!file_rname!) do set new_file_name=%%b

	set new_file_name=!new_file_name:\= !

	echo rename "!file_name!" "!new_file_name!"

)

Then if there are also ; characters in the string, isn't the semicolon used as a separator again?

Well, there are always some bugs in the program. We can only eliminate as many special cases as possible and modify the code according to the situation.

o(∩_∩)o...Haha, I didn't see you on QQ.

Or rely on external tools.

@echo off

for %%a in (*.mp3) do (

for /f "delims=" %%b in ('echo\%%a^|sed "s/.*_\(.*\.mp3\)/\1/"') do echo rename "%%a" "%%b"

)

pause

ps: QQ has been invisible for a long time.

[ Last edited by lxmxn on 2007-9-19 at 12:11 PM ]

```
set fso=createobject("scripting.filesystemobject")
set folder=fso.getfolder(".")
for each file in folder.files
if UCASE(RIGHT(file,3))="MP3" and INSTR(file,"_")<>0 then
set wj=fso.getfile(file)
wj.name=cl(file) & ".mp3"
end if
next
msgbox "Operation successful!",4096,"Prompt"
function cl(filename)
filename=fso.getbasename(filename)
n=INSTRREV(filename,"_")
cl=MID(filename,n+1)
end function
```

It's hard to say if there are duplicate names.
How about being more straightforward:
ren ??????*.jpg ??????.jpg
It's still okay

ren *.txt ??????.txt

The text "ren *.txt ??????.txt" is in English already in terms of the command itself. If we consider the context of DOS commands, it's a renaming command. But as per the requirement, if the text is already in English, return it unchanged. So the translated result is:

ren *.txt ??????.txt