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Delete files that contain a specific string

Posted on 2013-11-27
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Last Modified: 2013-11-30
I want to delete files that contain a specific string..

if exist *.txt findstr /c:"AB*123*" *.txt ... then delete the files

I need to know how to complete this.
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Question by:100questions
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7 Comments
 
LVL 18

Expert Comment

by:Steven Harris
ID: 39682696
I'm not sure what exactly you are trying to accomplish.  Try something like:

del *yourstring*.*

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If it is the "AB*123*" you are searching for in a txt file, then:

del AB*123*.txt

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If you want to do this recursively, use /s:

del /s *yourstring*.*

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Author Comment

by:100questions
ID: 39682701
I want to delete the files that contain the string AB*123* within them, not within the name of the file
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LVL 27

Expert Comment

by:tliotta
ID: 39683337
Are you needing to learn how to pipe output from findstr into a del command? That should be just about all that's need if I understand your question.

Tom
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LVL 18

Expert Comment

by:Steven Harris
ID: 39683435
You can run from console if you you are in the current directory:

for /f "eol=: delims=" %F in ('findstr /m AB*123* *.txt') do del "%F"

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To run within batch file, change %F to %%F.


Make sure to run this as a test first to confirm the requirements are met.
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Author Comment

by:100questions
ID: 39683463
for /f "eol=: delims=" %F in ('findstr /m AB*123* *.txt') do del "%F"

The above does not work.  I think it has to do with the fact that AB*123* is the string to look for, I don't think it's the correct syntax.   If you look for *123* then it will work.

I need for the command to look for AB*123* within the file itself, and once it finds this string, then to delete the file that it found the string inside.
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LVL 18

Expert Comment

by:Steven Harris
ID: 39683576
OK, let's step back and look at it again...

Try running the following from directory where the files are.  You should return all file names that meet the criteria:

for /F %a in ('dir /b *.txt findstr "AB*123*"') do @echo del "%a"

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Also, are you sure you are wanting the *?

for findstr:

 .         Wildcard: any character
 *         Repeat: zero or more occurrences of previous character or class
 ^         Line position: beginning of line
 $         Line position: end of line
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LVL 55

Accepted Solution

by:
Bill Prew earned 500 total points
ID: 39683694
Should be as simple as this, from a command line do:

for /f "tokens=*" %A in ('findstr /i /m /c:"AB.*123" "c:\temp\*.txt"') do del "%~A"

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or in a BAT script do:

for /f "tokens=*" %%A in ('findstr /i /m /c:"AB.*123" "c:\temp\*.txt"') do del "%%~A"

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~bp
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