контрольная сумма и подсчет блоков в файле (checksum and count the blocks in a file)
Имя (Name)
sum - checksum and count the blocks in a file
Синопсис (Synopsis)
sum [OPTION]... [FILE]...
Описание (Description)
Print checksum and block counts for each FILE.
With no FILE, or when FILE is -, read standard input.
-r use BSD sum algorithm, use 1K blocks
-s, --sysv
use System V sum algorithm, use 512 bytes blocks
--help display this help and exit
--version
output version information and exit