"Linux C programming from beginner to mastery" pick

Some of the files in Ubuntu are stored in the following description:

2. Bin: Store the execution files that are required for the system to start and some commands commonly used by users, such as CP, LS, cat, and so on.

4. Boot: Store the system kernel and boot manager, similar to grub.

6. Cdrom:ubuntu system installation disc Image mount location, this directory according to the user's actual situation exists, some systems may not.

8. Dev: The device file directory in which the appropriate device information is stored.

10. ETC: Store the corresponding system configuration file.

12. Home: The owner's directory in which the user's personal files and information are stored in the current system, similar to "My Documents" in Windows.

14. LIB: The system's most basic dynamic link sharing library, which acts like a. dll file in Windows.

16. LIB64: This is the 64-bit version of the Lib directory, which will exist when the 64-bit operating system is used, and the corresponding 64-bit library functions are stored in it.

18. Lost+found: Files that are recovered when file system repair is stored

20. Media: Used to store the various mediums that the Ubuntu system loads, such as discs, floppy disks, and so on. may not exist in other Linux operating systems.

22. MNT: Users temporarily mount other file systems, such as USB stick, CDROM, etc.

24. Opt: Users store "optional" programs for installation, such as KDE, GNOME, and many other graphical interfaces.

26. Proc: A mapped virtual directory of system memory that can be accessed directly through this directory to obtain system information, which exists in memory instead of on the hard disk.

28. Root:root the user's main working directory, similar to home.

30. Run: The file that describes the system information since the system started, some Linux may be located under Var.

32. Sbin: Store system-level executables like bin, but these files can only be used by the root user and not by ordinary users.

34. SELinux: Stores the appropriate files that provide mandatory access control, which may not exist in some Linux.

36. SRV: Stores files that provide some specific services.

38. SYS: Store system information related files.

40. TMP: Holds temporary files.

42. USR: Applications, documents, programs, etc. that store ordinary users.

44. var: files that are stored in time, size, and content that often change.
    

"Linux C programming from beginner to mastery" pick