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

     -t, --text
          read in text mode (default)

  The following two options are useful only when verifying check-
     sums:
     --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 pro-
     gram.  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 .

COPYRIGHT
     Copyright O 2006 Free Software Foundation, Inc.
     This is free software.  You may redistribute  copies  of  it
     under   the   terms   of  the  GNU  General  Public  License
     .  There  is  NO  WAR-
     RANTY, to the extent permitted by law.




sha1sum 6.7        Last change: December 2006                   1






User Commands                                          SHA1SUM(1)



SEE ALSO
     The full documentation for sha1sum is maintained as  a  Tex-
     info  manual.  If the info and sha1sum programs are properly
     installed at your site, the command

          info sha1sum

     should give you access to the complete manual.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     
       ATRIBUTE TYPE      ATRIBUTE VALUE  
    
     Availability         SUNWgnu-coreutils 
    
     Interface Stability  Uncommitted       
    

NOTES
     Source    for    GNU    coreutils    is     available     on
     http:/opensolaris.org.































sha1sum 6.7        Last change: December 2006                   2