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Computer Forensics foredrag - Prosa

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dd kommandoen<br />

dd kommandoen i UNIX læser og skriver fra raw devices<br />

den basale syntaks:<br />

• if - input file<br />

• of - output file<br />

• bs blocksize<br />

• count - antal blokke der skal læses/skrives<br />

• skip - skip et antal blokke<br />

Eksempel - læs 5 blokke a 1MB fra /dev/zero<br />

dd if=/dev/zero of=/tmp/nulfil bs=1m count=5<br />

5+0 records in<br />

5+0 records out<br />

5242880 bytes transferred in 0.221153 secs (23707037 bytes/sec)<br />

c○ copyright 2005 Security6.net, Henrik Lund Kramshøj 48

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