FreeBSD 7.0 manual page repository

FreeBSD is a free computer operating system based on BSD UNIX originally. Many IT companies, like DeployIS is using it to provide an up-to-date, stable operating system.

bsdiff - generate a patch between two binary files



      bsdiff - generate a patch between two binary files


      bsdiff oldfile newfile patchfile


      The bsdiff utility 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.
      The bsdiff utility uses memory equal to 17 times the size of oldfile, and
      requires an absolute minimum working set size of 8 times the size of


      Colin Percival 〈〉


Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.