Search an entire drive for character string
Steffen Kluge
kluge at fujitsu.com.au
Tue Nov 15 07:38:21 UTC 2005
On Mon, 2005-11-14 at 22:54 -0700, David G. Miller (aka DaveAtFraud)
wrote:
> There is (was?) a hex editor for linux called bev that might do the
> trick. The problem with using dd and grep (e.g., dd if=/dev/hda | grep
> 'string') is the best you will get is that the string you're interested
> in is somewhere on the disk.
One could probably narrow it down to disk blocks, by checking them all
individually, like this:
$dev is the device to search
$size is the size of $dev in 1k blocks
$string is your search string
n=0; while [[ $n -lt $size ]]; do
dd if=$dev bs=1k skip=$n count=1 2>/dev/null | \
grep -q "$string" && echo Disk block $n matches.
((n=n+1))
done
Cheers
Steffen.
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