| BSDIFF(1) | General Commands Manual | BSDIFF(1) |
bsdiff — generate
a patch between two binary files
bsdiff |
⟨oldfile⟩ ⟨newfile⟩ ⟨patchfile⟩ |
bsdiff compares
⟨oldfile⟩ to
⟨newfile⟩ and writes to
⟨patchfile⟩ a binary patch suitable for
use by bspatch(1). When ⟨oldfile⟩ and
⟨newfile⟩ are two versions of an
executable program, the patches produced are on average a factor of five
smaller than those produced by any other binary patch tool known to the
author.
bsdiff uses memory equal to 17 times the
size of ⟨oldfile⟩, and requires an
absolute minimum working set size of 8 times the size of oldfile.
Colin Percival ⟨cperciva@freebsd.org⟩
| May 18, 2003 | FreeBSD |