1SHA1SUM(1)                       User Commands                      SHA1SUM(1)
2
3
4

NAME

6       sha1sum - compute and check SHA1 message digest
7

SYNOPSIS

9       sha1sum [OPTION]... [FILE]...
10

DESCRIPTION

12       Print or check SHA1 (160-bit) checksums.  With no FILE, or when FILE is
13       -, read standard input.
14
15       -b, --binary
16              read in binary mode
17
18       -c, --check
19              read SHA1 sums from the FILEs and check them
20
21       --tag  create a BSD-style checksum
22
23       -t, --text
24              read in text mode (default)
25
26              Note: There is no difference between binary and text mode option
27              on GNU system.
28
29   The following four options are useful only when verifying checksums:
30       --quiet
31              don't print OK for each successfully verified file
32
33       --status
34              don't output anything, status code shows success
35
36       --strict
37              exit non-zero for improperly formatted checksum lines
38
39       -w, --warn
40              warn about improperly formatted checksum lines
41
42       --help display this help and exit
43
44       --version
45              output version information and exit
46
47       The  sums  are computed as described in FIPS-180-1.  When checking, the
48       input should be a former output of this program.  The default  mode  is
49       to  print  a line with checksum, a character indicating input mode ('*'
50       for binary, space for text), and name for each FILE.
51
52       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>
53       Report    sha1sum    translation    bugs   to   <http://translationpro‐
54       ject.org/team/>
55

AUTHOR

57       Written by Ulrich Drepper, Scott Miller, and David Madore.
58

60       Copyright © 2013 Free Software Foundation, Inc.   License  GPLv3+:  GNU
61       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
62       This  is  free  software:  you  are free to change and redistribute it.
63       There is NO WARRANTY, to the extent permitted by law.
64

SEE ALSO

66       The full documentation for sha1sum is maintained as a  Texinfo  manual.
67       If  the  info and sha1sum programs are properly installed at your site,
68       the command
69
70              info coreutils 'sha1sum invocation'
71
72       should give you access to the complete manual.
73
74
75
76GNU coreutils 8.22               October 2018                       SHA1SUM(1)
Impressum