1 .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.35.
2 .TH SHA1SUM "1" "March 2007" "GNU coreutils 6.9" "User Commands"
4 sha1sum \- compute and check SHA1 message digest
7 [\fIOPTION\fR] [\fIFILE\fR]...
9 .\" Add any additional description here
11 Print or check SHA1 (160\-bit) checksums.
12 With no FILE, or when FILE is \-, read standard input.
14 \fB\-b\fR, \fB\-\-binary\fR
17 \fB\-c\fR, \fB\-\-check\fR
18 read SHA1 sums from the FILEs and check them
20 \fB\-t\fR, \fB\-\-text\fR
21 read in text mode (default)
22 .SS "The following two options are useful only when verifying checksums:"
25 don't output anything, status code shows success
27 \fB\-w\fR, \fB\-\-warn\fR
28 warn about improperly formatted checksum lines
31 display this help and exit
34 output version information and exit
36 The sums are computed as described in FIPS\-180\-1. When checking, the input
37 should be a former output of this program. The default mode is to print
38 a line with checksum, a character indicating type (`*' for binary, ` ' for
39 text), and name for each FILE.
41 Written by Ulrich Drepper, Scott Miller, and David Madore.
43 Report bugs to <bug\-coreutils@gnu.org>.
45 Copyright \(co 2007 Free Software Foundation, Inc.
47 This is free software. You may redistribute copies of it under the terms of
48 the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
49 There is NO WARRANTY, to the extent permitted by law.
51 The full documentation for
53 is maintained as a Texinfo manual. If the
57 programs are properly installed at your site, the command
61 should give you access to the complete manual.