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cmp(1) [ultrix man page]

cmp(1)							      General Commands Manual							    cmp(1)

       cmp - compare two files

       cmp [-l | -s] file1 file2  [ skip1 ]  [ skip2 ]

       The  command  compares two files.  If either file1 or file2 is `-', standard input is used for the file.  With no options, makes no comment
       if the files are the same.  If they differ, it reports the byte and line number at which the difference occurred to  standard  output.	If
       one file is an initial subsequence of the other a message including the file name is written to standard error.

       The optional skip1 and skip2 parameters are initial byte offsets into file1 and file2 respectively and may be either octal, by specifying a
       leading 0, or decimal.  When using skip1 and skip2 the offset is treated as the start of the respective input file.  Only one option may be
       specified  at  a  time.	Only one of the input files may be standard input at a time.  Because the line number is not calculated when using
       either of the options the use of either flag will increase the speed of

       -l Long format:	prints the byte number (decimal) and the differing bytes (octal) for each difference.

       -s Suppresses normal output and sets the exit code only.

       Exit code 0 is returned for identical files, 1 for different files, and 2 for an inaccessible or missing argument.

See Also
       comm(1), diff(1)


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cmp(1)							      General Commands Manual							    cmp(1)

cmp - compare two files SYNOPSIS
file1 file2 [skip1 [skip2]] DESCRIPTION
compares two files (if file1 or file2 is the standard input is used). Under default options, makes no comment if the files are the same; if they differ, it announces the byte and line number at which the difference occurred. If one file is an initial subsequence of the other, that fact is noted. skip1 and skip2 are initial byte offsets into file1 and file2, respectively; and maybe octal or decimal; the form of the number is determined by the environment variable (in the C locale, a leading 0 denotes an octal number. See on environ(5) and strtol(3C)). recognizes the following options: Print the byte number (decimal) and the differing bytes (octal) for each difference (byte numbering begins at 1 rather than 0). Print nothing for differing files; return codes only. EXTERNAL INFLUENCES
Environment Variables determines the language in which messages are displayed. 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
returns the following exit values: Files are identical. Files are not identical. Inaccessible or missing argument. prints the following warning if the comparison succeeds till the end of file of file1(file2) is reached. SEE ALSO comm(1), diff(1). STANDARDS CONFORMANCE

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