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SUM(1L) SUM(1L)
NNAAMMEE
sum - checksum and count the blocks in a file
SSYYNNOOPPSSIISS
ssuumm [-rs] [--sysv] [--help] [--version] [file...]
DDEESSCCRRIIPPTTIIOONN
This manual page documents the GNU version of ssuumm. ssuumm
computes a 16-bit checksum for each named file, or the
standard input if none are given or when a file named `-'
is given. It prints the checksum for each file along with
the number of blocks in the file (rounded up). By default
each corresponding file name is also printed if at least
two arguments are specified. With the _-_-_s_y_s_v option, cor-
responding file name are printed when there is at least
one file argument. By default, the GNU ssuumm computes
checksums using an algorithm that is compatible with the
BSD ssuumm and prints file sizes in units of 1K blocks.
OOPPTTIIOONNSS
_-_r Use the default (BSD compatible) algorithm. This
option is included for compatibility with the Sys-
tem V ssuumm. Unless the _-_s option was also given, it
has no effect.
_-_s_, _-_-_s_y_s_v
Compute checksums using an algorithm that is com-
patible with the one the System V ssuumm uses by
default and print file sizes in units of 512-byte
blocks instead of 1K.
_-_-_h_e_l_p Print a usage message and exit with a non-zero sta-
tus.
_-_-_v_e_r_s_i_o_n
Print version information on standard error then
exit.
FSF GNU Text Utilities 1