sha512sum man page
sha512sum — compute and check SHA512 message digest
- Calculate the SHA512 checksum for a file:
- Calculate SHA512 checksums for multiple files:
sha512sum filename1 filename2
- Read a file of SHA512 sums and verify all files have matching checksums:
sha512sum -c filename.sha512
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
create a BSD-style checksum
- -t, --text
read in text mode (default)
Note: There is no difference between binary and text mode option on GNU system. -z, --zero end each output line with NUL, not newline,
and disable file name escaping
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
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.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report sha512sum translation bugs to <https://translationproject.org/team/>
Copyright © 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://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.
Full documentation at: <https://www.gnu.org/software/coreutils/sha512sum>
or available locally via: info '(coreutils) sha2 utilities'
md5sum(1), sha1sum(1), whirlpoolsum(1).