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Full Discussion: MD5 File Parsing
Top Forums Shell Programming and Scripting MD5 File Parsing Post 302496381 by rdcwayx on Monday 14th of February 2011 12:50:51 AM
Old 02-14-2011
Ok, guess you have the md5 list file: md5_total.txt With below codes, you can find out the files list which are changed.

Code:
MD5FILE=/XXX/md5_total.txt

cd /DIR1 
find . -type f -exec md5deep {} \; > new_md5.txt

diff <(sort -k2 $MD5FILE) <(sort -k2 $new_md5.txt) |awk '/</' {print $NF}'

 

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MD5SUM(1)                                                          User Commands                                                         MD5SUM(1)

NAME
md5sum - compute and check MD5 message digest SYNOPSIS
md5sum [OPTION]... [FILE]... DESCRIPTION
Print or check MD5 (128-bit) checksums. With no FILE, or when FILE is -, read standard input. -b, --binary read in binary mode -c, --check read MD5 sums from the FILEs and check them --tag create a BSD-style checksum -t, --text read in text mode (default) The following five options are useful only when verifying checksums: --ignore-missing don't fail or report status for missing files --quiet don't print OK for each successfully verified file --status don't output anything, status code shows success --strict exit non-zero for improperly formatted checksum lines -w, --warn warn about improperly formatted checksum lines --help display this help and exit --version output version information and exit The sums are computed as described in RFC 1321. When checking, the input should be a former output of this program. The default mode is to print a line with checksum, a space, a character indicating input mode ('*' for binary, ' ' for text or where binary is insignificant), and name for each FILE. BUGS
Do not use the MD5 algorithm for security related purposes. Instead, use an SHA-2 algorithm, implemented in the programs sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1), or the BLAKE2 algorithm, implemented in b2sum(1) AUTHOR
Written by Ulrich Drepper, Scott Miller, and David Madore. REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report md5sum translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/md5sum> or available locally via: info '(coreutils) md5sum invocation' GNU coreutils 8.28 January 2018 MD5SUM(1)
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