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IF EXIST [string in file] THEN [command]
Posted: 05 Aug 2011 20:28
by alleypuppy
I'm making a batch file that will add a string to a file of it doesn't exist in that file. Is this possible?
Re: IF EXIST [string in file] THEN [command]
Posted: 05 Aug 2011 22:37
by Batcher
Code: Select all
findstr /c:"hello world" a.txt || echo hello world >>a.txt
Re: IF EXIST [string in file] THEN [command]
Posted: 06 Aug 2011 10:42
by dbenham
The above works, but you probably don't want to see the FINDSTR output if the string already exists. So we just redirect output to NUL:
Code: Select all
findstr /c:"hello world" a.txt >nul || echo hello world >>a.txt
Dave Benham