shasum1
Print or check sha checksums
Usage
Usage: shasum
[OPTION] ...
[FILE] ...
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
shasum -a
512224
-c
checksumfile
and name
for
each
FILE.
The
line
starts
with
a
`\'
character
if
the
Report shasum
bugs
to
[email protected]
Overview
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)" | shasumOr, if you want to use SHA-256 instead of the default SHA-1, simply say:
perl -e "print qq(abc)" | shasum -a 256Since 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 224Releases
9 releases since Debian 5.0 (Lenny); the text changed 8 times.