Charles's questions

Is there a way to change the core filename format per session instead of for the entire machine?
On Linux the only way I can find is using sysctl as root:

sudo /sbin/sysctl -w "kernel.core_pattern=core-%H-%N-%P"

On Solaris same problem with root

coreadm -g core-%n-%f-%p

But unfortunately both these commands change the system permanently for all users, which I wish to avoid.

What I want is to be able to put a command in my .bashrc and as a non priv user have my core files be placed and named where I want them.

EDIT:

Just found out you can do this in solaris with

coreadm -p core-%n-%f-%p $$

Does anyone know about Linux?

GCC has built in include directories for certain standard headers. I just need to know where this list is. My newly compiled gcc will not compile my little test C++ program because it cannot find standard headers. I think it fails because of some config options I used to make my file system more organized. I set the bindir and libdir, which I think might have screwed up the built-in include paths for some reason.

Program (dummy.c):

#include <iostream>
void main(){}

Command:

g++ dummy.c

Error:

dummy.c:1:20: fatal error: iostream: No such file or directory