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5.5. Additional Resources
Below are additional sources of information about
proc file system.
5.5.1. Installed Documentation
Some of the best documentation about the
proc file system is installed on the system by default.
/usr/share/doc/kernel-doc-<version>/Documentation/filesystems/proc.txt— Contains assorted, but limited, information about all aspects of the/proc/directory./usr/share/doc/kernel-doc-<version>/Documentation/sysrq.txt— An overview of System Request Key options./usr/share/doc/kernel-doc-<version>/Documentation/sysctl/— A directory containing a variety ofsysctltips, including modifying values that concern the kernel (kernel.txt), accessing file systems (fs.txt), and virtual memory use (vm.txt)./usr/share/doc/kernel-doc-<version>/Documentation/networking/ip-sysctl.txt— A detailed overview of IP networking options.
5.5.2. Useful Websites
- http://www.linuxhq.com/ — This website maintains a complete database of source, patches, and documentation for various versions of the Linux kernel.

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