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@tarnagas tarnagas/rasp-backup
Last active Jun 12, 2019

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What would you like to do?
Save raspberry state as a compressed img file
#!/usr/bin/env sh
# Sample of use:
#
# rasp-backup /dev/sdc
set -eu
IMG_FILE=rasp.$(date +%Y%m%d.%s).img.gz
GZIP_BIN="$(which pigz)" # tries for multithread gzip
test -z "${GZIP_BIN}" && {
GZIP_BIN=gzip
}
trap cleanup 2 3 6 15
cleanup() {
rm -rv "${IMG_FILE}"
exit 1
}
main() {
export LANG=en_US
echo "Creating backup: ${IMG_FILE}"
dd bs=4M status=progress if="${1}" | "${GZIP_BIN}" > "${IMG_FILE}" || {
cleanup
}
}
main "$@"
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