将命令的输出重定向到/ proc

Question

I have created a kernel module to have a proc file into which I can read and write data. After using insmod mymodule.ko , I am able to write simple text into my proc file as:

echo "Hello world" > /proc/myprocfile

I am also able to read data from my proc file properly using:

cat /proc/myprocfile

My question is if I want to write the contents of a command say, ls /proc rather than simply echoing a message, then how to send the output of such command to myprocfile .

Answer 1

ls /proc > /proc/myprocfile

由于这似乎是您要找的内容，因此这里是IO重定向的Wikipedia页面，其中提供了更多示例并解释了其他一些IO重​​定向操作。