System Configuration

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System Configuration Parameters

The functions and macros listed in this chapter give information about configuration parameters of the operating system--for example, capacity limits, presence of optional POSIX features, and the default path for executable files (String Parameters).

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• General Limits :: Constants and functions that describe various process-related limits that have one uniform value for any given machine.
• System Options :: Optional POSIX features.
• Version Supported :: Version numbers of POSIX.1 and POSIX.2.
• Sysconf :: Getting specific configuration values of general limits and system options.
• Minimums :: Minimum values for general limits.
• Limits for Files :: Size limitations that pertain to individual files. These can vary between file systems or even from file to file.
• Options for Files :: Optional features that some files may support.
• File Minimums :: Minimum values for file limits.
• Pathconf :: Getting the limit values for a particular file.
• Utility Limits :: Capacity limits of some POSIX.2 utility programs.
• Utility Minimums :: Minimum allowable values of those limits.
• String Parameters :: Getting the default search path.