On Tue, 2005-07-19 at 14:22 +0100, fergus wrote: > Can anybody tell me how in general to grep files for hex characters 00 > to ff inclusive? I can do the 26 characters 01 to 1a (being ^A to ^Z > respectively) and also 20 to 7e (being <space>, punct, 0-9, A-Z, more > punct, a-z, more punct) but am stuck for everything else: 00, 1b to 1f > and 7f to ff. Dunno, I thought it might be something like > > find . | xargs grep -l "\x8f" > > but it's obviously not that. Thanks. (Maybe I can use sed just to find > stuff, not replace it?) Try "od" (octal dump) with the "-x" option, it will display a file as hex, so you can grep for your characters. Eg. od -x myfile | grep 6e You can also use the option "-cx" to display both hex and ascii, so... od -cx myfile | grep -C 3 6e (grep -C 3 tells grep to show 3 lines of "context" around the match). Cheers, Ben Ben Stringer ===== ben@xxxxxxxxxxx ==================================
