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[[!meta copyright="Copyright © 2008, 2009, 2010 Free Software Foundation,
Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
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Although there is no standard (POSIX or other) for the layout of the `/proc`
pseudo-filesystem, it turned out a very useful facility in GNU/Linux and other
systems, and many tools concerned with process management use it. (`ps`, `top`,
`htop`, `gtop`, `killall`, `pkill`, ...)
Instead of porting all these tools to use [[libps]] (Hurd's official method for
accessing process information), they could be made to run out of the box, by
implementing a Linux-compatible `/proc` filesystem for the Hurd.
The goal is to implement all `/proc` functionality needed for the various process
management tools to work. (On Linux, the `/proc` filesystem is used also for
debugging purposes; but this is highly system-specific anyways, so there is
probably no point in trying to duplicate this functionality as well...)
*Status*: Madhusudan.C.S has implemented a new, fully functional [[procfs|madhusudancs]] for
[[GSoC 2008|community/gsoc/2008]].
In August 2010, Jérémie Koenig [published another, new
version](http://lists.gnu.org/archive/html/bug-hurd/2010-08/msg00165.html).
# Internals
## Old Implementation from [[open_issues/HurdExtras]]
<http://www.nongnu.org/hurdextras/#procfs>
## Files opened by various tools
* [[`ps`|procps]]
* [[`top`|top]]
* [[`htop`|htop]]
* `gtop`
* [[`killall`|killall]]
* `pkill`
* ...
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