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SHA1SUM ("1") | General commands | Unix Manual Pages | :man▋
NAME
sha1sum - compute and check SHA1 message digest
CONTENTS
Synopsis
Description
Author
Copyright
SYNOPSIS
sha1sum [OPTION] [FILE]...
DESCRIPTION
Print or check SHA1 (160-bit) checksums. With no FILE, or when FILE is -, read standard input. --> |
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| -b, --binary | | | read in binary mode | | -c, --check | | | read SHA1 sums from the FILEs and check them | | -t, --text | read in text mode (default) | |
"The following two options are useful only when verifying checksums:"
| --status | | | don’t output anything, status code shows success | | -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-180-1. 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.
AUTHOR
Written by Ulrich Drepper, Scott Miller, and David Madore.
"REPORTING BUGS"
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright © 2007 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.
"SEE ALSO"
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