一位同事正在试验bash shell脚本中的文件截断:从二进制文件中提取前两个字节。以下代码在BSD/OS X(输出中为“12”)上工作正常,但在Linux (输出为空)上不起作用:head -c2 test | tee test >/dev/null将head | tee部件更改为在子subshell中运行(head -c2 test | tee test >
We must copy the bootloader into a different area of memorymov ds, axmov si, 0x7c00Cylinder (warning only 8 bits supported); Destination: 0x7c00push axmov es, axpop axjc _read_e