Sam Gleske on 7 Jan 2013 09:56:39 -0800

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[PLUG] Raising the dead: proc filesystem

Reference to an original thread "proc filesystem":

Has anyone found a decent way to do this outside of parsing ifconfig output?  I've done it in a one liner here...

Yet I've found that most times I'm able to reliably turn to the /proc filesystem for stuff like this.  I'm just curious if anyone has found a decent way to do this since that thread was originally posted.

I wonder if parsing a combination of /proc/net/fib_trie and /proc/net/route would be useful in finding the IP address of the default route (which I would assume be the internet connected IP address).  I found fib_trie by grep -irl my IP address through /proc.  Here's some kernel documentation on fib_trie but there's nothing useful about using it for obtaining the IP address of the default route.;a=blob;f=Documentation/networking/fib_trie.txt;h=0723db7f8495a1a0466ae06cd311c3e72ce24337;hb=HEAD

I look forward to discussing this.

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