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JRPrakash

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Linux man page why to use number ?

Hi, I happen to use the man command in the following way
# man 3 pthread_init.

How can i find out pthread_init man page can be retrieved only mentioning by number 3 ?.. I end up tring from 1 to 3 .


What does this number means ?? Can someone provide be bit explanation about it ?.  
Linux OS DevCLinux Networking

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>> So usually you should do:

Or if you know what you're looking for, simply use the correct section. So, for example if you know you want info on the library call pthread_init, you know it's gonna be in section 3. If you want info on the shell command ls, you know it'll be in section 1. Etc.
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C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.

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