I have a file conversion tool that converts the files correctly but just appends the desired file type extension to the old filename.
So example files are something like
file1.ext1.ext2
.
.
.
fileN.ext1.ext2
I thought it would be an easy fix - just use a wildcard operator on the ren command.
example:
ren \dir*.ext1.ext2 *.ext2
but the output remains .ext1.ext2. I feel like I'm close.
Any suggestions? I've seen suggestions to use push and pop but those seem unnecessary.
Thank you!
The * wildcard has a fair bit of compatibility handling related to DOS 8.3 names and whatnot. How did copying and renaming with wildcards work in MS-DOS?
One way to get around it is to use full names without wildcards in the rename operation:
#echo off
REM test file:
echo.>> "file1.foo.bar"
REM remove foo extension:
for %%A in (*.foo.bar) do for /F "eol=? delims=" %%B in ("%%~dpnA") do #ren "%%~fA" "%%~nB%%~xA"
(Change %% to % if not in a batch file)
Related
I have a bunch of video files with names like so:
6592110904-Ivory-2.mp4
6592280588-Cornflower.mp4
6592321696-Ballet Pink.mp4
I want to rename them to get rid of everything after the first hyphen so they end up like:
6592110904.mp4
6592280588.mp4
6592321696.mp4
How do I go about doing this?
Please put the code below in a bat file, place it in directory with mp4 files. Before running real renaming, please remove "echo" before "move". please be carefull with renaming bacause (theoretically) it is possible to have same name for different files.You'll be prompted to confirm if you want to override the old one.
Code splits each filename after dash and renames the file taking first item. Good luck.
#echo off
for /F "tokens=1,* delims=-" %%a in ('dir /A-D /B "*.mp4"') do (
echo move "%%a-%%b" "%%a%%~xb"
)
Need to concatenate all of the javascript files in a directory and all of its sub-directories into one file.
Right now I have a very simple command in a batch file that concatenates all of the matching files in one directory into one file:
copy C:\javascripts\*.js concatenated.js
However, this only works for the one directory and not any of its sub-directories. How can I do this same thing and also include all of the matching files in the sub-directories?
Thanks so much!
From the command line you can use
for /r "c:\javascripts" %F in (*.js) do #type "%F" >>concatenated.js
You might want want to first delete any existing concatenated.js before you run the above command.
From a batch file the percents need to be doubled
#echo off
del concatenated.js
for /r "c:\javascripts" %%F in (*.js) do type "%%F" >>concatenated.js
EDIT
It is a bit more efficient to put parentheses around the entire statement and use a single overwrite redirection instead of append redirection with each iteration. It also eliminates the need to delete the file in the beginning.
>concat.js (for /r "c:\javascripts" %F in (*.js) do #type "%F")
or from batch
#echo off
>concat.js (for /r "c:\javascripts" %%F in (*.js) do type "%%F")
I'm not aware of an approach to do that from a batch file, but you could use a tool like minify
http://code.google.com/p/minify/
to both combine JavaScript files and also minify them (e.g. by removing comments and unnecessary white space).
There are quite a few similar tools for a variety of programming environments.
I have 500 files coming in and I need to first check if any file(s) exist then rename all of them regardless of what their filename is (the files are named in a different language).
No need to process them in any order.
Rename:
1. “¦X¼d¬f-20110703-¦+¦dñHÑ-ª-¦=¬¦.xls”
2. “¦X¼d¬f-20110707-¦+¡¦-+¡8.xls”
3. “¦X¼d¬f-20110707-¦+¡¦ñj¦«.xls”
4. “¦X¼d¬f-20110708-¦+¡¦¬M¼n.xls”
5. “¦X¼d¬f-20110713-¦d¼O¼n¦hÑP.xls”
.
.
.
500
To:
“TWN_CH_INV_VISIT_FORM_01.xls”
“TWN_CH_INV_VISIT_FORM_02.xls”
“TWN_CH_INV_VISIT_FORM_03.xls”
“TWN_CH_INV_VISIT_FORM_04.xls”
“TWN_CH_INV_VISIT_FORM_05.xls”
.
.
.
“TWN_CH_INV_VISIT_FORM_500.xls”
Hope you could help me on this one. I’ve been trying to do this for weeks.
a simple FOR with a count (SET /A) should do what you need.
setlocal enabledelayedexpansion
SET /A COUNT=0
FOR %%A IN (*.xls) DO (
SET /A COUNT+=1
REN "%%A" "TWN_CH_INV_VIST_FORM_!COUNT!.xls"
)
See HELP FOR and HELP SET
This is a deceptively difficult question to solve.
The 5 year old PA answer has a few problems.
1) The FOR loop begins iterating without buffering the entire directory tree, so it has the potential to rename a file that has already been renamed. I believe that is why the 7 file is missing within r0mmel's comment.
2) Delayed expansion occurs after for variables are expanded, so the file name will be corrupted and the rename will fail if the name contains a ! character.
3) A rename can fail if there already exists a TWN_CH_INV_VIST_FORM_n.xls file with the same number.
At first I thought I could solve the problem using the following:
#echo off
for /f "delims=: tokens=1*" %%A in (
'dir /b *.xls ^| findstr /n "^"'
) do ren "%%B" "TWN_CH_INV_VIST_FORM_%%A.xls.new"
ren *.txt.new *.
I use DIR /B to list the files, and pipe that result to FINDSTR to prefix each file name with a line number, followed by a colon.
I then use FOR /F to iterate and parse the results into the number and the file name. FOR /F buffers the entire result before iterating, so I don't need to worry about renaming the same file twice.
I first give the renamed files a .xls.new "extension", just in case your directory already has files that meet the TWN_CH_INV_VIST_FORM_n.xls pattern. You don't want any name collisions. The final REN command then simply removes the .new extension to leave the desired .xls.
BUT, I just noticed that the original file names have lots of weird characters that could involve unicode that is not in the current code page. FOR /F does not play well with unicode.
There is one other minor issue in that the above does not pad the number to a fixed width. (this could have been solved easily enough)
So at this point it is time to break out my JREN.BAT regular expression renaming utility. It is pure script (hybrid batch / JScript) that runs natively on any Windows machine from XP onward. It has a built in facility to incorporate a fixed width incrementing number in the new name, and it works fine with unicode. I still temporarily give the new name the ".xls.new" extension to avoid any name collisions.
#echo off
call jren "^.*" "'TWN_CH_INV_VIST_FORM_'+$n+'.xls.new'" /j /npad 3 /fm *.xls
ren *.xls.new *.
I chose to pad the incrementing number to 3 digits instead of 2 because the OP said there could be 500 files.
Full documentation for JREN.BAT is available from the command line via jren /?, or jren /?? if you want paged output.
i have an edited version of a config file specific for my machine.
i have the same config file in multiple different directories in my development folder.
i want to, in a single bat file, replace all instances of this file with my edited one.
So in pusedo code:
Take C:\edited.config and copy to C:\Projects\ /s wherever original.config is found
i want the final file to have the name of original.config, not edited.config
so i am guessing i need some combination of a FOR, a rename and copy or something like that
is this easier to do in Powershell?
can anybody help?
Thanks
I blogged about this a little bit ago at http://jamesewelch.com/2008/05/01/how-to-write-a-dos-batch-file-to-loop-through-files/
I think your solution will look something similar to (below is untested but used to show general idea)
for /f %%a IN ('dir /b *.config') do copy c:\master.config %%a
There's probably a switch there on the copy to suppress file overwrite warnings, but I don't remember what the switch is. This will copy your master.config and overwrite your local file (variable of %%a).
I'm amazed what DOS batch file experts make work. Since I'm not one of them, I take an approach that's pragmatic for me. It might work for you as well.
Get a list of destination folders
C:
Cd\
Dir original.config /s > original.bat
Edit original.bat in your favorite text editor (I like Notepad++)
Search for "original.config" and replace with "" (empty string)
Insert the text "Xcopy C:\edited.config " at the front of each line
Proof-read the result to be sure it's what you want. If you're not sure put an "Echo " in front of each line for a dry run.
Run the batch file.
#echo off
C:
cd \Projects
FOR /F "tokens=*" %%G IN ('DIR /B /S original.config') DO xcopy /y c:\edited.config %%G
How would I go about reading an entire directory and blanking files with a specific extension? I have an application that reads the content of a specific folder and returns an error if a file is missing, however it does't check to see if the files are valid, so I want to make them NULL to get around the checks.
if by 'blanking' you mean truncating them, you could use the following:
for /f %%a in ('dir *.[my ext]') do (echo . > %%a)
note that the double % is for use within a batch file. if you are running this from a command line, use a single %.
EDIT:
to incorporate #Loadmaster's improvement:
for /f %%a in ('dir *.[my ext]') do (type nul > %%a)
First, create an empty file. Call it "blank". You can use Notepad to just save an empty file, for example.
Let's suppose the specific extension is ".xyz". Run this:
for %f in (*.xyz) do copy /y blank %f
The for loop sets variable "%f" to each file name in turn, and runs the copy command. The copy command copies the blank file on top of each matching file.
By the way, you can find out more about the for command using the help command:
help for
You could make the batch file take the filter and then it's much more useful.
#for %%i in (%1) do cd.>%%i
Usage (if you call it empty.bat):
empty *.c