sha512sum - Man Page
compute and check SHA512 message digest
Examples (TL;DR)
- Calculate the SHA512 checksum for one or more files:
sha512sum path/to/file1 path/to/file2 ... - Calculate and save the list of SHA512 checksums to a file:
sha512sum path/to/file1 path/to/file2 ... > path/to/file.sha512 - Calculate a SHA512 checksum from
stdin:command | sha512sum - Read a file of SHA512 sums and filenames and verify all files have matching checksums:
sha512sum --check path/to/file.sha512 - Only show a message for missing files or when verification fails:
sha512sum --check --quiet path/to/file.sha512 - Only show a message when verification fails, ignoring missing files:
sha512sum --ignore-missing --check --quiet path/to/file.sha512
Synopsis
sha512sum [OPTION]... [FILE]...
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 checksums from the FILEs and check them
- --tag
create a BSD-style checksum
- -t, --text
read in text mode (default)
- -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
- --ignore-missing
don't fail or report status for missing files
- --quiet
don't print OK for each successfully verified file
- --status
don't output anything, status code shows success
- --strict
exit non-zero for improperly formatted checksum lines
- -w, --warn
warn about improperly formatted checksum lines
- --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 space, a character indicating input mode ('*' for binary, ' ' for text or where binary is insignificant), and name for each FILE.
Note: There is no difference between binary mode and text mode on GNU systems.
Author
Written by Ulrich Drepper, Scott Miller, and David Madore.
Reporting Bugs
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
Copyright
Copyright © 2023 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.
See Also
Full documentation <https://www.gnu.org/software/coreutils/sha512sum>
or available locally via: info '(coreutils) sha2 utilities'
Referenced By
guestfish(1), guestfs(3), md5sum(1), sha1sum(1), whirlpoolsum(1).