md5checker
Because the MD5 native OSX function doens't have the comparator option, I scripted this small bash script as a substitution. This script works with the default md5sum format used in other plate-forms.
Usage and installation are described on my blog.
DON'T use the OSX md5 -r command to generate your MD5SUMS files! This command strip the star and makes invalid checksum pattern! Read more.
Download
md5checker v.1.00
2011-12-10 — ZIP package (8 Ko)
Changelog
Version 1.00 — 2011-12-10
- First release
Script
#!/bin/sh
#
# md5checker.sh
#
#
# This function is a substitution of md5sum -c for OS which couldn't have md5sum
#
#
# Copyright (c) 2011, Joris Berthelot
# Joris Berthelot <admin@eexit.net>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
# of the Software, and to permit persons to whom the Software is furnished to do
# so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
VERSION=1.00
DATE=2011-12-10
QUIET=false
while getopts ":qhv" OPT; do
case $OPT in
q)
QUIET=true
;;
v)
echo "md5checker -- v$VERSION -- $DATE"
exit 0
;;
h)
echo "\t\t\tmd5checker -- v$VERSION"
echo
echo "SYNOPSIS"
echo "\tmd5checker [-q] source_file"
echo "\tmd5checker [-v] [-h]"
echo
echo "DESCRIPTION"
echo "\tReads MD5 (128-bits) checksums in the file and compare them to the files"
echo
echo "\t-q"
echo "\t\tQuiet mode. Don't print OK messages or warnings messages"
echo
echo "\t-h"
echo "\t\tDisplays this help and exits"
echo
echo "\t-v"
echo "\t\tOutputs the version information and exits"
echo
echo "AUTHOR"
echo "\tWritten by Joris Berthelot <admin@eexit.net>"
echo "\thttp//www.eexit.net/projects/md5checker.html"
echo
echo "COPYRIGHT"
cat << EOT
Copyright (c) 2011, Joris Berthelot
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
http://www.opensource.org/licenses/mit-license.php MIT License
EOT
echo
exit 0
;;
\?)
echo "Invalid option: -$OPTARG" >&2
echo
echo "SYNOPSIS"
echo "\tmd5checker [-q] source_file"
echo "\tmd5checker [-v] [-h]"
exit 0
;;
esac
done
# Loops on each args
for ARG in $*; do
# Checkes arg filename existence
if [ ! -e "$ARG" ]; then
if [[ "-q" != "$ARG" ]]; then
echo "md5checker: "$ARG": No such filename"
fi
continue
fi
# Checkes if file content has at least one checksum pattern
if [ 0 -eq "$(grep -csxP "^\w{32}\s(\s|\*).+$" "$ARG")" ]; then
if ! $QUIET ; then
echo "[ \033[0;33m!!\033[0m ] "$ARG": No valid MD5 checksum entry found"
fi
continue
fi
# Loops on file lines
while read LINE; do
# Checkes if the current line has a checksum pattern
if [[ $(echo "$LINE" | grep -sxP "^\w{32}\s(\s|\*).+$") ]]; then
# Gets the file name of the line
CFILE=$(echo "$LINE" | cut -c 35-)
# If the file does not exist
if [ ! -e "$CFILE" ]; then
# If verbose output
if ! $QUIET ; then
echo "[ \033[0;33m!!\033[0m ] "$CFILE": File is missing"
fi
continue
fi
# Checkes if the MD5 sum of the file is the expected one
if [[ "$LINE" == $(openssl dgst -md5 -r "$CFILE") ]]; then
# If verbose output
if ! $QUIET ; then
echo "[ \033[0;32mOK\033[0m ] "$CFILE""
fi
else # File checksum failed
echo "[\033[0;31mFAILED\033[0m] "$CFILE""
fi
fi
done < $ARG
done
exit 0
Open Source Licence
md5checker uses the MIT Licence.
Copyright © 2011-2013, Joris Berthelot.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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