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MD5SUM !!!MD5SUM NAME SYNOPSIS DESCRIPTION BUGS AUTHOR ---- !!NAME md5sum - generates or checks MD5 message digests !!SYNOPSIS __md5sum__ [[-bv] [[-c [[file]] | [[file...] !!DESCRIPTION __md5sum__ generates or checks MD5 checksums. The algorithm to generate the checksum is reasonably fast and strong enough for most cases. Exact specification of the algorithm is in ''RFC 1321.'' Normally __md5sum__ generates checksums of all files given to it as a parameter and prints the checksums followed by the filenames. If, however, __-c__ is specified, only one filename parameter is allowed. This file should contain checksums and filenames to which these checksums refer to, and the files listed in that file are checked against the checksums listed there. See option __-c__ for more information. __OPTIONS__ __-b__ Use binary mode. In unix environment, only difference between this and the normal mode is an asterix preceding the filename in the output. __-c__ Check md5sum of all files listed in ''file'' against the checksum listed in the same file. The actual format of that file is the same as output of __md5sum.__ That is, each line in the file describes a file. A line looks like: ____ So, for example, if a file was created and its message digest calculated like so: __echo foo __ __md5sum__ would report: __d3b07384d113edec49eaa6238ad5ff00 md5-test-file__ __-v__ Be more verbose. Print filenames when checking (with -c). !!BUGS The related MD4 message digest algorithm was broken in October 1995. MD5 isn't looking as secure as it used to. This manpage is not quite accurate and has formatting inconsistent with other manpages. __md5sum__ does not accept standard options like __--help__. !!AUTHOR __md5sum__ was originally written by Branko Lankester, and modified afterwards by Colin Plumb and Ian Jackson (ijackson@gnu.ai.mit.edu). Manual page was added by Juho Vuori (javuori@cc.helsinki.fi) ----
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