batch file edit

[pallys]

Anybody got an idea how I can tackle this problem.

Theres some 365 files in a directory, and in each file if the 6 and 7th chars reads 'SF', it needs to be modified to 'R4' and saved. Repeat for each file in dir.

Cheers.

 

[Bry]

Google for editplus (shareware)
it can do thsi quite easily as you can search within directories

 

[matja]

unix sh/bash: for i in *;do if [ "$(dd if=$i bs=1 count=2 skip=6 2>/dev/null)" == "SF" ];then echo R4|dd of=$i bs=1 count=2 seek=6 opt=notrunc 2>/dev/null;fi;done

windows: ?????