Commit 6a23baac authored by Julian Rother's avatar Julian Rother

Upload check_dd_total

parent c860b593
#!/bin/bash
usage="$(basename "$0") [-v] [-q] src des -- verifies per sha256sum, that src was correctly written to des
$(basename "$0") -h
where:
-v verbose: prints the sha256sums
-q quite: suppresses the output of the result,
the return-Code remains as reponse
-h prints this help message"
quite=false;
verbose=false;
printHelp=false;
for opt in "$@"
do
case $opt in
-v) verbose=true ; shift 1 ;;
-q) quite=true ; shift 1 ;;
-h) printHelp=true ; shift 1 ;;
-?) printHelp=true ; shift 1 ;;
esac
done
if [ "$printHelp" = true ] || [ $# -ne 2 ]
then
echo "$usage";
exit -1;
fi
src=$1;
des=$2;
lengthSrc=$(($(stat -c '%s' $src) / 4096)); # length of the source (in 4096kB)
if [ "$verbose" = true ]
then
echo "length of the source (in 4096kB): $lengthSrc"
fi
sha256sumSrc=$(dd if=$src bs=4096 count=$lengthSrc status=none | sha256sum)
if [ "$verbose" = true ]
then
echo "sha256sum of the source: $sha256sumSrc"
fi
sha256sumDes=$(dd if=$des bs=4096 count=$lengthSrc status=none | sha256sum)
if [ "$verbose" = true ]
then
echo "sha256sum of the destination: $sha256sumDes"
fi
if [ "$sha256sumSrc" == "$sha256sumDes" ]
then
if [ "$quite" = false ]
then
echo "OK!";
fi
exit 0;
else
if [ "$quite" = false ]
then
echo "FAILED!";
fi
exit 1;
fi
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