shell脚本：检出文所有包含某字符串的文件中所include的头文件

#!/bin/bash
for i in `grep CPU_ZERO ./ -nrw | awk -F: '{print $1}'`
do
    echo $i
    head -20 $i | grep "#include"
    echo " "

done

如果还想统计头文件出现的次数，则：

./inc.sh | grep "<sched.h>" | wc -w