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useful linux commands

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д #date && cp  /root/appb/disk_release* /root/appb/cptest/  && date »òÕßÓÃtime time cp  /root/appb/disk_release* /root/appb/cptest/   Á½¸ö¶¼Öض¨Ïò >/dev/null 2>&1
ln -s target linkname
ln -s /boot  boot1   ln -s target linkname
ln -s /boot  boot1


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