👤
Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:
Select Section of Man Page:
Select Man Page Repository:

OpenSolaris 2009.06 - man page for sum (opensolaris section 1)

sum(1)					  User Commands 				   sum(1)

NAME
       sum - print checksum and block count for a file

SYNOPSIS
       sum [-r] [file]...

DESCRIPTION
       The  sum utility calculates and prints a 16-bit checksum for the named file and the number
       of 512-byte blocks in the file. It is typically used to look for bad spots, or to validate
       a file communicated over some transmission line.

OPTIONS
       The following options are supported:

       -r    Use an alternate (machine-dependent) algorithm in computing the checksum.

OPERANDS
       The following operands are supported:

       file    A path name of a file.  If no files are named, the standard input is used.

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

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

EXIT STATUS
       The following exit values are returned.

       0     Successful completion.

       >0    An error occurred.

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

       +-----------------------------------------------------------+
       |      ATTRIBUTE TYPE		    ATTRIBUTE VALUE	   |
       |Availability		      SUNWesu			   |
       |CSI			      Enabled			   |
       +-----------------------------------------------------------+

SEE ALSO
       cksum(1), sum(1B), wc(1), attributes(5), environ(5), largefile(5)

DIAGNOSTICS
       Read error is indistinguishable from end of file on most devices. Check the block count.

NOTES
       Portable applications should use cksum(1).

       sum and usr/ucb/sum (see sum(1B)) return different checksums.

SunOS 5.11				    7 Nov 1995					   sum(1)


All times are GMT -4. The time now is 05:29 AM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
×
UNIX.COM Login
Username:
Password:  
Show Password





Not a Forum Member?
Forgot Password?