CMP man page on SmartOS

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CMP(1)									CMP(1)

NAME
       cmp - compare two files

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

DESCRIPTION
       The  cmp	 utility compares two files. cmp writes no output if the files
       are the same. Under default options, if they differ, it writes to stan‐
       dard  output  the  byte	and line numbers at which the first difference
       occurred. Bytes and lines are numbered beginning with 1. 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
       can be either octal or decimal. A leading 0 denotes octal.

OPTIONS
       The following options are supported:

       -l
	     Write  the	 byte number (decimal) and the differing bytes (octal)
	     for each difference.

       -s
	     Write nothing for differing files. Return exit status only.

OPERANDS
       The following operands are supported:

       file1
		A path name of the first file to be compared. If file1	is  −,
		the standard input is used.

       file2
		A  path name of the second file to be compared. If file2 is −,
		the standard input is used.

       If both file1 and file2 refer to standard input or refer	 to  the  same
       FIFO  special,  block  special  or  character  special  file,  an error
       results.

USAGE
       See largefile(5) for the	 description  of  the  behavior	 of  cmp  when
       encountering files greater than or equal to 2 Gbyte (2^31 bytes).

EXAMPLES
       Example 1 Comparing Files Byte for Byte

       The  following  example	does  a	 byte for byte comparison of file1 and
       file2:

	 example% cmp file1 file2 0 1024

       It skips the first 1024 bytes in file2 before starting the comparison.

ENVIRONMENT VARIABLES
       See environ(5) for descriptions of the following environment  variables
       that  affect the execution of cmp: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES,
       and NLSPATH.

EXIT STATUS
       The following error values are returned:

       0
	     The files are identical.

       1
	     The files are different. This includes the case where one file is
	     identical to the first part of the other.

       >1
	     An error occurred.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌────────────────────┬─────────────────┐
       │  ATTRIBUTE TYPE    │ ATTRIBUTE VALUE │
       ├────────────────────┼─────────────────┤
       │CSI		    │ Enabled	      │
       ├────────────────────┼─────────────────┤
       │Interface Stability │ Standard	      │
       └────────────────────┴─────────────────┘

SEE ALSO
       comm(1), diff(1), attributes(5), environ(5), largefile(5), standards(5)

				 Jul 19, 2006				CMP(1)
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