Use the /Proc file system

Forum: The Linux Kernel Hackers' Guide
Re: How can the kernel copy directly data from one process to another process? (Jürgen Zeller)
Keywords: direct copy, user space, kernel space
Date: Mon, 22 Jun 1998 16:15:21 GMT
From: <marty@twsu.campus.mci.net>

The /proc file system uses a directory for each pid. Do a man 5 proc on linux machine to find out more? Bye, Marty.