bdiff - Finds differences in large files
bdiff file1 file2 [number] [-s]
bdiff - file2 [number] [-s]
bdiff file1 - [number] [-s]
The bdiff command compares file1 and file2 and writes
information about their differing lines to standard output.
If either filename is - (dash), bdiff reads standard
Suppresses error messages. (May either precede or follow
the number argument if it is specified.)
The bdiff command uses diff to find lines that must be
changed in two files to make them identical (see the diff
command). Its primary purpose is to permit processing of
files that are too large for diff.
The bdiff command ignores lines common to the beginning of
both files, splits the remainders into sections of number
lines, and runs diff on the sections. The output is then
processed to make it look as if diff had processed the
If you do not specify number, a system default is used.
In some cases, the number you specify or the default number
may be too large for diff. If bdiff fails, specify a
smaller value for number and try again.
Note that because of file segmenting, bdiff does not necessarily
find the smallest possible set of file differences.
In general, although the output is similar, using
bdiff is not the equivalent of using diff.
The diff command is executed by a child process, generated
by forking, and communicates with bdiff through pipes.
It should not normally be necessary to use this command,
since diff can handle most large files.
No differences. Differences found. An error occurred.
Commands: diff(1), diff3(1)
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