Bash - shell vs environment variable
86659
Difference between shell variables which are exported and those which are not in bash
133631
how to source a shell script [environment variables] in perl script without forking a subshell?
107557
Shell usage of ":-" and advantage
14058
Environment variable substitution in sed
60776
What's the best distro/shell-agnostic way to set environment variables?
57974
How to evaluate environment variables into a string in Python?
111133
Difference between 'ls' and 'echo $(ls)'
74331
Are there naming conventions for variables in shell scripts?
155110
What is the difference between executing a Bash script vs sourcing it?
8641
Which are the (Bash) shell special parameters/variables?
86391
Why are non-environment variables passed to the subshell invoqued by command substitution?
76804
Shell out from ruby while setting an environment variable
59166
When to wrap quotes around a shell variable?
6820
Where to declare environment variables?
15296
How can I assign the output of a command to a shell variable?
49325
set environment variables from stdout
31991
Terminal vs bash?