Section #7. Endnotes
1. Mongrel is a fast HTTP library and server for Ruby that is intended for hosting Ruby Web applications of any kind. It is by far the most popular server for Ruby on Rails applications (http://mongrel.rubyforce.org).
2. See note 1.
3. See In UNIX Everything Is a File (http://ph7spot.com/publications/troubleshooting_ruby_ processes/in_unix_everything_is_a_file).
4. PID stands for process identification number. This is a unique number that defines the process within the kernel that is assigned when the process is initiated. The PID is typically passed to process control functions to perform actions on a given process (for example, kill).
5. Hint : -d cwd
6. If you need more background on UNIX signals and system calls, you ...
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