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dd (disk dump) wrapper. Prevents you from mistakenly writing to your computer's devices. Allows you to write only to the last removable connected device.
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| #!/bin/bash | |
| BLACKLIST_DEVICES="/dev/sda /dev/sdb /dev/sdc /dev/sdd" | |
| DD_BIN="/usr/bin/dd" | |
| main() { | |
| for arg in $@; do | |
| for dev in $BLACKLIST_DEVICES; do | |
| if [[ "$arg" == *"$dev"* ]]; then | |
| echo "ERROR: device is locked." | |
| return 1 | |
| fi | |
| done | |
| done | |
| echo "INFO: command, $DD_BIN $@." | |
| read -p "Execute command [y/N]: " opt | |
| if [ "$opt" == "y" ]; then | |
| $DD_BIN $@ | |
| return $? | |
| else | |
| echo "INFO: command aborted." | |
| return 1 | |
| fi | |
| } | |
| main "$@" |
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Install
cp dd-wrapper.sh /usr/local/bin
[ -f /etc/bashrc ] && echo "alias dd='/usr/local/bin/dd-wrapper.sh'" >> /etc/bashrc
[ -f /etc/bash.bashrc ] && echo "alias dd='/usr/local/bin/dd-wrapper.sh'" >> /etc/bash.bashrc