DD(1) General Commands Manual DD(1) NAME dd - dd [--help] [--version] [if=file] [of=file] [ibs=bytes] [obs=bytes] [bs=bytes] [cbs=bytes] [skip=blocks] [seek=blocks] [count=blocks] [conv={ascii, ebcdic, ibm, block, unblock, lcase, ucase, swab, noerror, notrunc, sync}] 512 bs=bytes sync, noerror, notrunc dd sync NUL k=1024b=512w=2c=1wcGNU wsystem V24.2 BSD 4"x" GEU fileutils 4.0 bs=cbs=obs=M=1048576G=1073741824 TPEZYD kD=1000 MD=1000000 GD=1000000000 lsdfduM DD if=file file of=file file conv=notrunc dd file O seek= ibs=bytes bytes 512 obs=bytes bytes 512 bs=bytes bytes ibs obs bs ibs obs sync, noerror notrunc bs cbs=bytes block unblock skip=blocks blocks ibs-byte seek=blocks blocks obs-byte count=blocks blocks ibs-byte conv="[,""]..." "," ascii EBCDICascii ebcdic asciiebcdic ibm asciialternative ebcdic block cbs ""NEWLINEc'0 unblock "" cbs lcase ucase swab POSIX 1003.26PASC1003.2 34 noerror notrunc sync 0 ibs GNU --help --version -- LANG, LC_ALL, LC_CTYPELC_MESSAGES POSIX 1003.2 dd I/O'dd if=myfile of=/dev/mytape conv=sync' NUL fileutils-4.0 dd ddlinux -man fileutils-bugs2gnu.ai.wit.edu [] astonia [] 2000/10/19 [Linuxman] http://cmpp.linuxforum.net man man https://github.com/man-pages-zh/manpages- zh GNU fileutils 4.0 November 1998 DD(1)