When I run cmp
on 2 files I get one byte difference:
cmp -l file1.dmp_byte file2.dmp
913462 0 100
How do I update byte 913462 of file file1.dmp with value 100?
Can it be done using standard Linux shell tools or Python?
In Python, you could use a memory-mapped file:
import mmap
with open('file1.dmp', 'r+b') as fd:
mm = mmap.mmap(fd.fileno(), 0)
mm[913462] = chr(100)
mm.close()