sha1sum man page on JazzOS
SHA1SUM(1) User Commands SHA1SUM(1)
sha1sum - compute and check SHA1 message digest
sha1sum [OPTION] [FILE]...
Print or check SHA1 (160-bit) checksums. With no FILE, or when FILE is
-, read standard input.
read in binary mode
read SHA1 sums from the FILEs and check them
read in text mode (default)
The following two options are useful only when verifying checksums:
don't output anything, status code shows success
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-180-1. 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 type (`*' for
binary, ` ' for text), and name for each FILE.
Written by Ulrich Drepper, Scott Miller, and David Madore.
Report bugs to <firstname.lastname@example.org>.
Copyright © 2006 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the
terms of the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the
extent permitted by law.
The full documentation for sha1sum is maintained as a Texinfo manual.
If the info and sha1sum programs are properly installed at your site,
should give you access to the complete manual.
sha1sum 6.4 October 2006 SHA1SUM(1)
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