sha1sum



SHASUM(1)                        User Commands                       SHASUM(1)




NAME

       shasum - compute and check SHA1 message digest


SYNOPSIS

       sha1sum [OPTION] [FILE]...
       sha1sum [OPTION] --check [FILE]


DESCRIPTION

       Print or check SHA1 (160-bit) checksums.  With no FILE, or when FILE is
       -, read standard input.

       -b, --binary
              read files in binary mode (default on DOS/Windows)

       -c, --check
              check SHA1 sums against given list

       -t, --text
              read files 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 formated 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 and Scott Miller.


REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.


COPYRIGHT

       Copyright © 2004 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is
       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
       PURPOSE.


SEE ALSO

       The  full  documentation  for shasum is maintained as a Texinfo manual.
       If the info and shasum programs are properly installed  at  your  site,
       the command

              info coreutils sha1sum

       should give you access to the complete manual.



shasum (coreutils) 5.2.1           July 2005                         SHASUM(1)

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