02-21-2013
head -3 totals.txt|od -bc output =
Quote:
0000000 060 060 060 060 060 060 060 062 067 063 060 060 012 060 060 060
0 0 0 0 0 0 0 2 7 3 0 0 \n 0 0 0
0000020 060 060 060 061 067 070 070 060 060 012
0 0 0 1 7 8 8 0 0 \n
0000032
---------- Post updated at 02:38 PM ---------- Previous update was at 02:18 PM ----------
Sorry Guys,
That awk command provided worked!
There was an error with my file.
Thanks for the help Guys
Last edited by nwalsh88; 02-21-2013 at 10:36 AM..
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sum(n) Cyclic Redundancy Checks sum(n)
__________________________________________________________________________________________________________________________________________________
NAME
sum - Calculate a sum(1) compatible checksum
SYNOPSIS
package require Tcl 8.2
package require sum ?1.1.0?
::crc::sum ?-bsd | -sysv? ?-format fmt? ?-chunksize size? [ -filename file | -channel chan | string ]
_________________________________________________________________
DESCRIPTION
This package provides a Tcl-only implementation of the sum(1) command which calculates a 16 bit checksum value from the input data. The
BSD sum algorithm is used by default but the SysV algorithm is also available.
COMMANDS
::crc::sum ?-bsd | -sysv? ?-format fmt? ?-chunksize size? [ -filename file | -channel chan | string ]
The command takes string data or a file name or a channel and returns a checksum value calculated using the sum(1) algorithm. The
result is formatted using the format(n) specifier provided or as an unsigned integer (%u) by default.
OPTIONS
-sysv The SysV algorithm is fairly naive. The byte values are summed and any overflow is discarded. The lowest 16 bits are returned as the
checksum. Input with the same content but different ordering will give the same result.
-bsd This algorithm is similar to the SysV version but includes a bit rotation step which provides a dependency on the order of the data
values.
-filename name
Return a checksum for the file contents instead of for parameter data.
-channel chan
Return a checksum for the contents of the specified channel. The channel must be open for reading and should be configured for
binary translation. The channel will no be closed on completion.
-chunksize size
Set the block size used when reading data from either files or channels. This value defaults to 4096.
-format string
Return the checksum using an alternative format template.
EXAMPLES
% crc::sum "Hello, World!"
37287
% crc::sum -format 0x%X "Hello, World!"
0x91A7
% crc::sum -file sum.tcl
13392
AUTHORS
Pat Thoyts
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category crc of
the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
SEE ALSO
cksum(n), crc32(n), sum(1)
KEYWORDS
checksum, cksum, crc, crc32, cyclic redundancy check, data integrity, security, sum
CATEGORY
Hashes, checksums, and encryption
COPYRIGHT
Copyright (c) 2002, Pat Thoyts <patthoyts@users.sourceforge.net>
crc 1.1.0 sum(n)