get environment variable by variable name?
111004
Indirectly expand variables in shell
74331
Are there naming conventions for variables in shell scripts?
64910
How to assign environment variables in parallel in bash
91029
Eval and environments in R: Why can't Eval() find a variable defined in the environment where it evaluates the expression
144996
How do I get the path my script is running in?
57554
Dynamic variable names in Bash
155899
How can I find out the variable name in python?
147377
HOSTNAME environment variable on Linux
146844
How do I *reliably* and *simply* get the current shell interpreter name?
3903
How do I set environment variables?
49216
How to update the PATH user environment variable from command-line
16366
How do I make environment variable changes stick in Python?
110529
Can we read the OS environment variables in Java?
22578
How do I set an environment variable on the command line and have it appear in commands?
114278
Environment Variables for Windows' Built-in Libraries?
67141
How to set system-wide environment variables on OS X Mavericks
23782
How can I get distribution name and version number in a simple shell script?