sha512sum Man page

SHA512SUM(1) User Commands SHA512SUM(1)


sha512sum – compute and check SHA512 message digest


sha512sum [OPTION]… [FILE]…


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 five options are useful only when verifying checksums:
don’t fail or report status for missing files

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

-w, –warn
warn about improperly formatted checksum lines

–help 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 space, a character indicating input
mode (‘*’ for binary, ‘ ‘ for text or where binary is insignificant),
and name for each FILE.


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


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Copyright © 2016 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.


Full documentation at:
or available locally via: info ‘(coreutils) sha2 utilities’

GNU coreutils 8.25 February 2016 SHA512SUM(1)

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