Mkdir function in Linux

Code:

1. Mkdir function in Linux
2.  
5. Prototype: int mkdir (const char * filename, mode_t Mode)
7. If the return value is 0, the operation is successful. If the return value is-1, an error occurs. This function must contain header files.
8. # Include <sys/STAT. h>
9. # Include <sys/types. h>
10.  
11. Mode indicates the permission of the new directory. You can use the following values:
13. S_irusr
14. S_iread
15. Read Permission bit for the owner of the file. on Alibaba systems this bit is 0400. s_iread is an obsolete synonym provided for BSD compatibility.
17. S_iwusr
18. S_iwrite
19. Write Permission bit for the owner of the file. Usually 0200. s_iwrite is an obsolete synonym provided for BSD compatibility.
21. S_ixusr
22. S_iexec
23. Execute (for ordinary files) or search (for directories) Permission bit for the owner of the file. Usually 0100. s_iexec is an obsolete synonym provided for BSD compatibility.
25. S_irwxu
26. This is equivalent to (s_irusr | s_iwusr | s_ixusr ).
28. S_irgrp
29. Read Permission bit for the group owner of the file. Usually 040.
31. S_iwgrp
32. Write Permission bit for the group owner of the file. Usually 020.
34. S_ixgrp
35. Execute or search permission bit for the group owner of the file. Usually 010.
37. S_irwxg
38. This is equivalent to (s_irgrp | s_iwgrp | s_ixgrp ).
40. S_iroth
41. Read Permission bit for other users. Usually 04.
43. S_iwoth
44. Write Permission bit for other users. Usually 02.
46. S_ixoth
47. Execute or search permission bit for other users. Usually 01.
49. S_irwxo
50. This is equivalent to (s_iroth | s_iwoth | s_ixoth ).
52. S_isuid
53. This is the set-user-id on execute bit, usually 04000. See how change persona.
55. S_isgid
56. This is the set-group-ID on execute bit, usually 02000. See how change persona.
58. S_isvtx
59. This is the sticky bits, usually 01000.

Mkdir function in Linux
Header file Library:

 

# Include <sys/STAT. h>

 

# Include <sys/types. h>

 

Function prototype:

 

Int mkdir (const char * pathname, mode_t mode );

 

Function Description:

 

The mkdir () function creates a directory named after the pathname parameter in mode, and mode defines the permission for creating a new directory.

 

Return Value:

 

If the directory is successfully created, 0 is returned; otherwise,-1 is returned and an error is recorded in the global variable errno.

 

Mode:

 

S_irwxu	00700 permission indicates that the owner of the file has the permission to read, write, and execute operations.
S_irusr (s_iread)	00400 permission indicates that the object owner has the readable permission.
S_iwusr (s_iwrite)	00200 permission indicates that the file owner has the write permission.
S_ixusr (s_iexec)	00100 permission indicates that the file owner has the permission to execute the file.
S_irwxg	00070 permission, which indicates that the file user group has the read, write, and execution permissions.
S_irgrp	00040 permission, which indicates that the file user group has the readable permission
S_iwgrp	00020 permission, which indicates that the file user group has the write permission
S_ixgrp	00010 permission, which indicates that the file user group has the execution permission
S_irwxo	00007 permission indicates that other users have the read, write, and execute permissions
S_iroth	00004 permission, which indicates that other users have the readable permission
S_iwoth	00002 permission, indicating that other users have the write permission
S_ixoth	00001 permission indicates that other users have the execution permission