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bdiff(1) [hpux man page]

bdiff(1)						      General Commands Manual							  bdiff(1)

bdiff - diff for large files SYNOPSIS
file1 file2 [n] DESCRIPTION
compares two files and produces output identical to what would be produced by (see diff(1)), specifying changes that must be made to make the files identical. is designed for handling files that are too large for but it can be used on files of any length. processes files as follows: o Ignore lines common to the beginning of both files. o Split the remainder of each file into n-line segments, then execute on corresponding segments. The default value of n is 3500. Command-Line Arguments recognizes the following command-line arguments: file1 file2 Names of two files to be compared by If file1 or file2 (but not both) is standard input is used instead. n If a numeric value is present as the third argument, the files are divided into n-line segments before processing by Default value for n is 3500. This option is useful when 3500-line segments are too large for processing by Silent option suppresses diagnostic printing by but does not suppress possible error messages from If the n and arguments are both used, the n argument must precede the option on the command line or it will not be properly recognized. EXTERNAL INFLUENCES
Environment Variables determines the language in which messages are displayed. If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari- able. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5). International Code Set Support Single- and multi-byte character code sets are supported. DIAGNOSTICS
Standard input was specified for both files. Only one file can be specified as standard input. A non-numeric value was specified for the n (third) argument. EXAMPLES
Find differences between two large files: and and place the result in a new file named Do the same, but limit file length to 1400 lines; suppress error messages: WARNINGS
produces output identical to output from and makes the necessary line-number corrections so that the output looks like it was processed by However, depending on where the files are split, may or may not find a fully minimized set of file differences. FILES
diff(1). bdiff(1)

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bdiff(1)							   User Commands							  bdiff(1)

bdiff - big diff SYNOPSIS
bdiff filename1 filename2 [n] [-s] DESCRIPTION
bdiff is used in a manner analogous to diff to find which lines in filename1 and filename2 must be changed to bring the files into agree- ment. Its purpose is to allow processing of files too large for diff. If filename1 (filename2) is -, the standard input is read. bdiff ignores lines common to the beginning of both files, splits the remainder of each file into n-line segments, and invokes diff on cor- responding segments. If both optional arguments are specified, they must appear in the order indicated above. The output of bdiff is exactly that of diff, with line numbers adjusted to account for the segmenting of the files (that is, to make it look as if the files had been processed whole). Note: Because of the segmenting of the files, bdiff does not necessarily find a smallest sufficient set of file differences. OPTIONS
n The number of line segments. The value of n is 3500 by default. If the optional third argument is given and it is numeric, it is used as the value for n. This is useful in those cases in which 3500-line segments are too large for diff, causing it to fail. -s Specifies that no diagnostics are to be printed by bdiff (silent option). Note: However, this does not suppress possible diagnos- tic messages from diff, which bdiff calls. USAGE
See largefile(5) for the description of the behavior of bdiff when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes). FILES
/tmp/bd????? ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWesu | +-----------------------------+-----------------------------+ |CSI |enabled | +-----------------------------+-----------------------------+ SEE ALSO
diff(1), attributes(5), largefile(5) DIAGNOSTICS
Use help for explanations. SunOS 5.10 14 Sep 1992 bdiff(1)

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