Linux Commands Examples

A great documentation place for Linux commands


checksum and count the blocks in a file


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

add an example, a script, a trick and tips

: email address (won't be displayed)
: name

Step 2

Thanks for this example ! - It will be moderated and published shortly.

Feel free to post other examples
Oops ! There is a tiny cockup. A damn 404 cockup. Please contact the loosy team who maintains and develops this wonderful site by clicking in the mighty feedback button on the side of the page. Say what happened. Thanks!


no example yet ...

... Feel free to add your own example above to help other Linux-lovers !


Print checksum and block counts for each FILE.


use BSD sum algorithm, use 1K blocks

-s, --sysv

use System V sum algorithm, use 512 bytes blocks


display this help and exit


output version information and exit

With no FILE, or when FILE is -, read standard input.


Copyright © 2012 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 permitted by law.

reporting bugs

Report sum bugs to bug-coreutils[:at:]gnu[:dot:]org
GNU coreutils home page: <>
General help using GNU software: <>
Report sum translation bugs to <>

see also

The full documentation for sum is maintained as a Texinfo manual. If the info and sum programs are properly installed at your site, the command

info coreutils 'sum invocation'

should give you access to the complete manual.


Written by Kayvan Aghaiepour and David MacKenzie.

How can this site be more helpful to YOU ?

give  feedback