Linux "sum" Command Line Options and Examples
checksum and count the blocks in a file

Print checksum and block counts for each FILE. With no FILE, or when FILE is -, read standard input.


sum [OPTION]... [FILE]...

Command Line Options:

use System V sum algorithm, use 512 bytes blocks
sum -s ...
display this help and exit
sum --help ...
output version information and exitAUTHORWritten by Kayvan Aghaiepour and David MacKenzie.REPORTING BUGSGNU coreutils online help: <>Report sum translation bugs to <>COPYRIGHTCopyright © 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later<>.This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent per‐mitted by law.
sum --version ...