Provided by: coreutils_8.21-1ubuntu5.4_amd64 

NAME
cksum - checksum and count the bytes in a file
SYNOPSIS
cksum [FILE]...
cksum [OPTION]
DESCRIPTION
Print CRC checksum and byte counts of each FILE.
--help display this help and exit
--version
output version information and exit
AUTHOR
Written by Q. Frank Xia.
REPORTING BUGS
Report cksum bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report cksum translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent
permitted by law.
SEE ALSO
The full documentation for cksum is maintained as a Texinfo manual. If the info and cksum programs are
properly installed at your site, the command
info coreutils 'cksum invocation'
should give you access to the complete manual.
GNU coreutils 8.21 March 2016 CKSUM(1)