dd bs=1M count1=16 if=/dev/zero of=/home/dennis/test1M_16M.block oflag=direct 2>>log.txt
2后面没有空格
dd bs=1M count1=16 if=/dev/zero of=/home/dennis/test1M_16M.block oflag=direct 2>>log.txt
2后面没有空格
转载于:https://www.cnblogs.com/Dennis-mi/articles/5474136.html