sha512sum — compute and check SHA512 message digest
Print or check SHA512 (512−bit) checksums. With no FILE, or when FILE is −, read standard input.
read in binary mode
read SHA512 sums from the FILEs and check them
create a BSD−style checksum
read in text mode (default)
don't print OK for each successfully verified file
don't output anything, status code shows success
exit non−zero for improperly formatted checksum lines
warn about improperly formatted checksum lines
display this help and exit
output version information and exit
The sums are computed as described in FIPS−180−2. When checking, the input should be a former output of this program. The default mode is to print a line with checksum, a character indicating input mode ('*' for binary, space for text), and name for each FILE.
The full documentation for sha512sum is maintained as a Texinfo manual. If the info and sha512sum programs are properly installed at your site, the command
info coreutils 'sha512sum invocation'
should give you access to the complete manual.
Copyright © 2014 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.