Open Source Forensic Tools
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Tool Name
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dd_rescue
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Description
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Like dd, dd_rescue does copy data from one file or block device to another. You can specify file positions (called seek and Skip in dd). There are several differences. dd_rescue does not provide character conversions. 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 bcakwards. 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.
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Operating System
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Unix
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Link
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http://www.garloff.de/kurt/linux/ddrescue/
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