shasum - Print or Check SHA Checksums
Usage: shasum [OPTION]... [FILE]... Print or check SHA checksums. With no FILE, or when FILE is -, read standard input. -a, --algorithm 1 (default), 224, 256, 384, 512, 512224, 512256 -b, --binary read in binary mode -c, --check read SHA sums from the FILEs and check them -t, --text read in text mode (default) -U, --UNIVERSAL read in Universal Newlines mode produces same digest on Windows/Unix/Mac -0, --01 read in BITS mode ASCII '0' interpreted as 0-bit, ASCII '1' interpreted as 1-bit, all other characters ignored -p, --portable read in portable mode (to be deprecated) The following two options are useful only when verifying checksums: -s, --status don't output anything, status code shows success -w, --warn warn about improperly formatted checksum lines -h, --help display this help and exit -v, --version output version information and exit When verifying SHA-512/224 or SHA-512/256 checksums, indicate the algorithm explicitly using the -a option, e.g. shasum -a 512224 -c checksumfile The sums are computed as described in FIPS PUB 180-4. 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, `U' for UNIVERSAL, `^' for BITS, `?' for portable), and name for each FILE. Report shasum bugs to mshelor@cpan.org
Perl Programmers Reference Guide SHASUM(1)
NAME
shasum - Print or Check SHA Checksums
SYNOPSIS
Usage: shasum [OPTION]... [FILE]...
Print or check SHA checksums.
With no FILE, or when FILE is -, read standard input.
-a, --algorithm 1 (default), 224, 256, 384, 512, 512224, 512256
-b, --binary read in binary mode
-c, --check read SHA sums from the FILEs and check them
-t, --text read in text mode (default)
-U, --UNIVERSAL read in Universal Newlines mode
produces same digest on Windows/Unix/Mac
-0, --01 read in BITS mode
ASCII '0' interpreted as 0-bit,
ASCII '1' interpreted as 1-bit,
all other characters ignored
-p, --portable read in portable mode (to be deprecated)
The following two options are useful only when verifying checksums:
-s, --status don't output anything, status code shows success
-w, --warn warn about improperly formatted checksum lines
-h, --help display this help and exit
-v, --version output version information and exit
When verifying SHA-512/224 or SHA-512/256 checksums, indicate the
algorithm explicitly using the -a option, e.g.
shasum -a 512224 -c checksumfile
The sums are computed as described in FIPS PUB 180-4. 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, `U' for UNIVERSAL, `^' for BITS, `?'
for portable), and name for each FILE.
Report shasum bugs to mshelor@cpan.org
DESCRIPTION
Running shasum is often the quickest way to compute SHA message
digests. The user simply feeds data to the script through files or
standard input, and then collects the results from standard output.
The following command shows how to compute digests for typical inputs
such as the NIST test vector "abc":
perl -e "print qq(abc)" | shasum
Or, if you want to use SHA-256 instead of the default SHA-1, simply
say:
perl -e "print qq(abc)" | shasum -a 256
Since shasum mimics the behavior of the combined GNU sha1sum,
sha224sum, sha256sum, sha384sum, and sha512sum programs, you can
install this script as a convenient drop-in replacement.
Unlike the GNU programs, shasum encompasses the full SHA standard by
allowing partial-byte inputs. This is accomplished through the BITS
option (-0). The following example computes the SHA-224 digest of the
7-bit message 0001100:
perl -e "print qq(0001100)" | shasum -0 -a 224
AUTHOR
Copyright (c) 2003-2015 Mark Shelor <mshelor@cpan.org>.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | runtime/perl-522 |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
shasum is implemented using the Perl module Digest::SHA or
Digest::SHA::PurePerl.
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original community
source was downloaded from
http://www.cpan.org/src/5.0/perl-5.22.1.tar.bz2
Further information about this software can be found on the open source
community website at http://www.perl.org/.
perl v5.22.1 2017-06-06 SHASUM(1)