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SHASUM(1) FSF SHASUM(1)
shasum - compute and check SHA1 message digest
sha1sum [OPTION] [FILE]...
sha1sum [OPTION] --check [FILE]
Print or check SHA1 (160-bit) checksums. With no FILE, or when FILE is -, read standard
read files in binary mode (default on DOS/Windows)
check SHA1 sums against given list
read files in text mode (default)
The following two options are useful only when verifying checksums:
don't output anything, status code shows success
warn about improperly formated checksum lines
--help display this help and exit
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 char-
acter indicating type (`*' for binary, ` ' for text), and name for each FILE.
Written by Ulrich Drepper and Scott Miller.
Report bugs to <email@example.com>.
Copyright (C) 2002 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.
The full documentation for shasum is maintained as a Texinfo manual. If the info and sha-
sum programs are properly installed at your site, the command
should give you access to the complete manual.
shasum (coreutils) 4.5.3 February 2003 SHASUM(1)
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