E.5. Additional Resources

Below are additional sources of information about the proc file system.

/usr/share/doc/kernel-doc-kernel_version/Documentation/ — This directory, which is provided by the kernel-doc package, contains documentation about the proc file system. Before accessing the kernel documentation, you must run the following command as root:
```
yum install kernel-doc
```
```
~]# yum install kernel-doc
```
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/usr/share/doc/kernel-doc-kernel_version/Documentation/filesystems/proc.txt — Contains assorted, but limited, information about all aspects of the /proc/ directory.
/usr/share/doc/kernel-doc-kernel_version/Documentation/sysrq.txt — An overview of System Request Key options.
/usr/share/doc/kernel-doc-kernel_version/Documentation/sysctl/ — A directory containing a variety of sysctl tips, 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-kernel_version/Documentation/networking/ip-sysctl.txt — A detailed overview of IP networking options.