Evaluate command stored in Environment variable
82845
How to defer variable expansion
78762
Set output of a command as a variable (with pipes)
6820
Where to declare environment variables?
130622
How do I set up bash completion for command arguments?
57604
Set variable conditionally on command line
88821
How do I get and set Environment variables in C#?
20256
How do I set environment variables from Java?
58433
What's a concise way to check that environment variables are set in a Unix shell script?
70948
Bash script - store stderr in a variable
136952
Assign command output to a variable and do if branch on the return value
69476
How to create an interactive bash script to collect arguments for a command in linux?
112148
Get (<<) Evaluate File Name
73552
Environment variables in Mac OS X
129588
Make an environment variable survive ENDLOCAL
42029
Where do I find out how a command/environment is defined?
99250
How do I read the source code of shell commands?
33584
How to determine where an environment variable came from?