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SHA1SUM(1)                       User Commands                      SHA1SUM(1)

NAME
       sha1sum - compute and check SHA1 message digest
SYNOPSIS
       sha1sum [OPTION]... [FILE]...
DESCRIPTION
       Print or check SHA1 (160-bit) checksums.  With no FILE, or when FILE is
       -, read standard input.
       -b, --binary
              read in binary mode
       -c, --check
              read SHA1 sums from the FILEs and check them
       --tag  create a BSD-style checksum
       -t, --text
              read in text mode (default)
              Note: There is no difference between binary and text mode option
              on GNU system.
   The following four options are useful only when verifying checksums:
       --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-180-1.  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 input mode ('*'
       for binary, space for text), and name for each FILE.
       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>;
       Report    sha1sum    translation    bugs   to   <http://translationpro-
       ject.org/team/>
AUTHOR
       Written by Ulrich Drepper, Scott Miller, and David Madore.
COPYRIGHT
       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+:  GNU
       GPL version 3 or later <http://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
       The full documentation for sha1sum is maintained as a  Texinfo  manual.
       If  the  info and sha1sum programs are properly installed at your site,
       the command
              info coreutils 'sha1sum invocation'
       should give you access to the complete manual.

GNU coreutils 8.22               November 2020                      SHA1SUM(1)