function getchld_kill()
{
if [[ -z "$1" ]];
then
echo "arguemnt 1 should be a number";
exit;
fi
local child
local father=$1
#echo"father: ${father}"
local childs=$(ps -ef | awk -v father=$father 'BEGIN{ ORS=" ";
} $3==father{ print $2;
}')
#echo "childs: " ${childs[*]}
if [[ ${#childs[@]} -ne 0 && -n "${childs[0]}" ]];
then
for child in ${childs[@]}
do
#echo child:${child}
getchld_kill ${child}
done
echo "killing the father: ${father}"
kill -9 ${father}
else
echo "killing myself pid:${father}"
kill -9 ${father}
return
fi
}getchld_kill $1
【杀死进程树】使用递归调用实现了树的深度优先遍历:
递归条件是 childs 数组不空, 且第一个元素非空( awk 在叶子上返回一个第一个元素是空的数组)
base line condition 设置在叶子进程上进行递归返回.
getchld_kill 的参数是树根进程.
