man/cat1/sha1sum.1.txt

SHA1SUM(1) User Commands SHA1SUM(1)
 
 
 
 
 
NAME
       sha1sum - 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/Win-
              dows)
 
       -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 (C) 2004 Free Software Foundation, Inc.
       This is free software; see the source for copying condi-
       tions. There is NO warranty; not even for MERCHANTABIL-
       ITY or FITNESS FOR A PARTICULAR PURPOSE.
 
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 sha1sum
 
       should give you access to the complete manual.
 
 
 
sha1sum 5.3.0 November 2004 SHA1SUM(1)