More details can be found in {{<manloader.conf5>}}.
More details can be found in {{<manloader.conf5>}}.
### Manual sections
| Section | Description |
| :--- | :--- |
| 1 | Section 1 of the manual describes **user commands** and tools, for example, file manipulation tools, shells, compilers, web browsers, file and image viewers and editors, and so on |
| 2 | Section 2 of the manual describes the Linux **system calls**. A system call is an entry point into the Linux kernel. Usually, system calls are not invoked directly: instead, most system calls have corresponding C library wrapper functions which perform the steps required (e.g., trapping to kernel mode) in order to invoke the system call. Thus, making a system call looks the same as invoking a normal library function. |
| 3 | Section 3 of the manual describes all **library functions** excluding the library functions (system call wrappers) described in Section 2, which implement system calls. |
| 4 | Section 4 of the manual describes **special files (devices)**. |
| 5 | Section 5 of the manual describes various **file formats**, as well as the **corresponding C structures**, if any. |
| 6 | Section 6 of the manual describes the **games** and funny little programs available on the system. |
| 7 | Section 7 of the manual provides **overviews on various topics**, and describes conventions and protocols, character set standards, the standard filesystem layout, and miscellaneous other things. |
