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I hope the system doesn’t matter as long as it’s current, but I’m using Ubuntu 11.10 Server. Is there any way for any user y to see user x’s environment variables? In other words, is it safe to store a password in an environment variable during an install script — assuming that the user running the software is allowed to know it?
It is possible to access environment variables reading file
/proc/*PID*/environ. But it has the same credentials as the process it concerns to.