How do I ask Ruby what system it's running on?
58791
How can I find which operating system my Ruby program is running on?
120415
How to run untrusted Ruby code inside a safe sandbox?
108519
Portable Ruby on Rails environment
69489
How do I figure out what package something is in without resorting to Google?
5943
How do version numbers work for MRI Ruby?
126520
How to detect true Windows version?
32007
How do I programmatically determine operating system in Java?
143862
How can I make my browser lie about my operating system?
146844
How do I *reliably* and *simply* get the current shell interpreter name?
143053
How do I check what kernel options were compiled without looking at /boot/config-*
81476
Specifying rails version to use when creating a new application
93277
How to find out what init mode system is using?
80975
How to detect my browser version and operating system using JavaScript?
83269
How to remove RVM (Ruby Version Manager) from my system
156381
How to determine the Boost version on a system?
107802
How to check if Ubuntu Desktop or Server is installed?
51964
How can I deploy a Perl/Python/Ruby script without installing an interpreter?