Environment variables. Where are they saved in?
124154
What exactly is an environment variable?
86659
Difference between shell variables which are exported and those which are not in bash
84333
Bash scripts ran from from gnome/nautilus don't have environment variables
7363
Why can't Windows handle an environment variable in Path?
67141
How to set system-wide environment variables on OS X Mavericks
86391
Why are non-environment variables passed to the subshell invoqued by command substitution?
254
Setting environment variables on OS X
91568
How to correctly escape command arguments from an environment variable
98789
Is there a way to change the environment variables of another process in Unix?
80275
How to find location of installed library
157307
Where do packages installed/upgraded with APT get stored?
3146
What are PATH and other environment variables, and how can I set or use them?
147377
HOSTNAME environment variable on Linux
101843
Complete view of where the PATH variable is set in bash
31810
Where should I store command line applications?
97567
How do I set persistent environment variables for root?
2578
Where is the downloaded package files directory?