Re: Renaming files using wildcards
From: Vincent Fatica (abuse_at_localhost.com)
Date: 09/05/04
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Date: Sun, 05 Sep 2004 16:15:30 GMT
OK, I forgot that "FOR /F" parses each line into tokens, and your
getting only the first token. So do this:
for /f "tokens=*" %f in ('dir /b') do ren "%f" "c_%f"
That way, %f will contain all the tokens. That works here with files
whose names contain spaces.
On Sat, 4 Sep 2004 19:22:56 -0700, <anonymous@discussions.microsoft.com>
wrote:
>Vince,
>
>Thanks for your help. In my situation this all works
>well except for situations where my file names contain
>blank spaces. When I strip down the filenames of their
>spaces, the rename works well. How can I rename the
>files but keep the spaces?
>I have reviewed the "for" command in Windows help, but
>it's too complicated for me to understand. I'm guessing
>that the FOR /f parameter parses the original file name
>into the variable "f", stripping the name of it's
>spaces. What actually happens is that, not only does it
>strip the filename of it's spaces, it trunkates the file
>name at the position the space occurs. In doing so,
>rename command can't find the file name to rename when it
>compares the original filename with the name in the
>variable.
>
>I have some programming skills and experience in MS
>Foxpro so I have a feel for some of this thing, but I'm
>lost when it comes to the Windows or DOS commands and
>their parameters.
>
>Jerry
>
>
>
>>-----Original Message-----
>>Here's a one-liner that seems to work here in a folder
>with 1000 files
>>(no guarantees).
>>
>> for /f %f in ('dir /b') do ren "%f" "c_%f"
>>
>>That is: for each line in the output of the 'DIR /B"
>command (bare file
>>names), rename the file with the prefix "c_". I used
>double quotes to
>>avoid problems with file names containing spaces.
>>
>>Try 'FOR /?' for more info on the FOR command
>>
>>Using wildcards generally won't work. Wildcards cause
>windows to
>>enumerate the files in a directory. Using a command
>like the one below,
>>it is easy to get CMD.EXE into a loop wherein it keeps
>finding new files
>>(the newly renamed ones) and renames them again.
>>
>> Don't do this: for %f in (*.*)
>do ren %f c_%f
>>
>>
>>On Fri, 3 Sep 2004 20:24:19 -0700, "Jerry Blake"
>><bbibooks@hawaii.rr.com> wrote:
>>
>>>I have a folder with many files in it that I want to
>>>rename with a common prefix. I want to add "c_" to
>the
>>>front end of a filename and I want to do that all in
>one
>>>fell swoop like this from a run cmd line:
>>>
>>>Ren *.* c_*.*
>>>
>>>It substitutes c_ for the first 2 characters of the
>>>existing filename.
>>>
>>>I've also tried ren *.* c_ & *.* and ren *.* + *.*
>and
>>>they don't work. If this can be done from other than
>the
>>>command line, that would be acceptable, as long as I
>>>don't have to rename each file individually.
>>>Any ideas?
>>>
>>>Jerry
>>
>>--
>> - Vince
>>.
>>
-- - Vince
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