dd_rescue - data recovery and data protection tool

dd_rescue copies data from one file or block device to another.

You can specify file positions (called seek and Skip in dd).

This is free and open source software.

Differences to dd:

dd_rescue does not provide character conversions.
The command syntax is different.
dd_rescue does not abort on errors on the input file, unless you specify a maximum error number. Then dd_rescue will abort when this number is reached.
dd_rescue does not truncate the output file, unless asked to.
You can tell dd_rescue to start from the end of a file and move backwards.
It uses two block sizes, a large (soft) block size and a small (hard) block size. In case of errors, the size falls back to the small one and is promoted again after a while without errors.

Website: www.garloff.de/kurt/linux/ddrescue
Support:
Developer: Kurt Garloff
License: GNU General Public License 2.0 or 3.0

dd_rescue is written in C. Learn C with our recommended free books and free tutorials.

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