atruskie/README.md

## README.md

      
    Raw
  

              README.md
            
          
    I'm testing file transfer methods (particularly to a SFTP remote).
In particular FileZilla does not detect corrupted files.
Use the above script to corrupt a remote file as a test.
If you are transferring files with rclone (https://rclone.org/)
using the --checksums argument it will detect the fault and re-transfer
the corrupt file.
FileZilla will twiddle its thumbs

  
## corrupt.sh
#!/usr/bin/env bash
read -p "Are you sure you want to purposely corrupt $1? " -n 1 -r
echo    # (optional) move to a new line
if [[ ! $REPLY =~ ^[Yy]$ ]]
then
    echo "Did nothing, quit"
    exit 1
fi

# do dangerous stuff
OLD_DATE=$(date -R -r $1)
echo -n "CORRUPT" | dd of="$1" bs=1 count=7 seek=1024 conv=notrunc
touch -d "$OLD_DATE" -m "$1"

echo "Corrupted $1 at byte 1024"
	#!/usr/bin/env bash
	read -p "Are you sure you want to purposely corrupt $1? " -n 1 -r
	echo # (optional) move to a new line
	if [[ ! $REPLY =~ ^[Yy]$ ]]
	then
	echo "Did nothing, quit"
	exit 1
	fi

	# do dangerous stuff
	OLD_DATE=$(date -R -r $1)
	echo -n "CORRUPT" \| dd of="$1" bs=1 count=7 seek=1024 conv=notrunc
	touch -d "$OLD_DATE" -m "$1"

	echo "Corrupted $1 at byte 1024"