cksum(n) 1.0.1 crc "cksum"

NAME

cksum - calculate a cksum(1) compatible checksum

SYNOPSIS

package require Tcl 8.2
package require cksum ?1.0.1?

::crc::cksum ?-format format? message

::crc::cksum ?-format format? -filename file

DESCRIPTION

This package provides a Tcl-only implementation of the cksum(1) algorithm based upon information provided at in the GNU implementation of this program as part of the GNU Textutils 2.0 package.

COMMANDS

::crc::cksum ?-format format? message
::crc::cksum ?-format format? -filename file: The command takes string data or a file name and returns a checksum value calculated using the cksum(1) algorithm. The result is formatted using the format(n) specifier provided or as an unsigned integer (%u) by default.

OPTIONS

-filename name: Return a checksum for the file contents instead of for parameter data.
-format string: Return the checksum using an alternative format template.

EXAMPLES

% crc::cksum "Hello, World!" 2609532967

% crc::cksum -format 0x%X "Hello, World!" 0x9B8A5027

% crc::cksum -file cksum.tcl 1828321145

AUTHORS

Pat Thoyts

KEYWORDS

checksum, cksum, crc, crc32, cyclic redundancy check, data integrity, security