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sha512sum

compute and check SHA512 message digest

Synopsis

sha512sum [OPTION]... [FILE]...


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examples

1
source
            
{
sha512sum $0
sha512sum /usr/bin/clamscan
sha512sum /usr/bin/freshclam
sha512sum /usr/bin/lynis
sha512sum /usr/bin/lynis
sha512sum /usr/bin/rkhunter
sha512sum /bin/rpm
} >> $SHA_SUM/init/SHA_SUMS
#imutable the SHA_SUMS because this is the weakest part of the script

description

Print or check SHA512 (512-bit) checksums. With no FILE, or when FILE is -, read standard input.
-b
, --binary

read in binary mode

-c, --check

read SHA512 sums from the FILEs and check them

--tag

create a BSD-style checksum

-t, --text

read in text mode (default)

The following three options are useful only when verifying checksums:
--quiet

don’t print OK for each successfully verified file

--status

don’t output anything, status code shows success

-w, --warn

warn about improperly formatted checksum lines

--strict

with --check, exit non-zero for any invalid input

--help

display this help and exit

--version

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.

copyright

Copyright © 2012 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.

reporting bugs

Report sha512sum bugs to bug-coreutils[:at:]gnu[:dot:]org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report sha512sum translation bugs to <http://translationproject.org/team/>


see also

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.


author

Written by Ulrich Drepper, Scott Miller, and David Madore.

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