The difference between the mkdir function in Linux and the _mkdir function in Windows

Let’s first introduce to you the _mkdir function under Windows

#include<direct.h>
int _mkdir( const char *dirname );

Parameters:

dirname is the pathname pointer of the directory

Return value:

If the creation time of the new directory, each of these functions returns a value of 0. In error, the function returns – 1

Detailed explanation of mode_t parameters of mkdir function under Linux

#include <sys/stat.h>
int mkdir(const char *path, mode_t mode);

Parameters:

path is the directory name

mode is the directory permissions

Return value:

Return 0 for success, return -1 Indicates an error and the errno value will be set.

mode mode bit:

mode represents the permissions of the new directory and can take the following values:

S_IRUSR
S_IREAD
S_IWUSR
S_IWRITE
S_IXUSR
S_IEXEC
S_IRWXU
This is equivalent to (S_IRUSR | S _IWUSR | S_IXUSR).
S_IRGRP
Read permission bit for the group owner of the file. Usually 040.
S_IWGRP
Write permission bit for the group owner of the file. Usually 020.
S_IXGRP
Execute or search permission bit for the group owner of the file. Usually 010 .
S_IRWXG
This is equivalent to (S_IRGRP | S_IWGRP | S_IXGRP).
S_IROTH
Read permission bit for other users. Usually 04.
S_IWOTH
Write permission bit for other users. for other users. Usually 01.
S_IRWXO
This is equivalent to (S_IROTH | S_IWOTH | S_IXOTH).
S_ISUID
This is the set-user-ID on execute bit, usually 04000. See How Change Persona. the set-group-ID on execute bit, usually 02000. See How Change Persona.
S_ISVTX
This is the sticky bit, usually 01000.

S_IRWXU 00700 permission, which means the file owner has read, write and execute permissions
S_IRUSR(S_IREAD) 00400 permissions, which means the file owner has readable permissions
S_IWUSR(S_IWRITE) 00200 permissions, which means the file owner has writable permissions

S_IXUSR(S_IEXEC) 00100 permissions, which means the file owner has writable permissions Execution permissions

S_IRWXG 00070 permissions, which means that the file user group has the permissions to read, write and execute operations
S_IRGRP 00040 permissions, which means that the file user group has readable permissions
S_IWGRP 00020 permissions, which means that the file user group has the writable permissions
S_IXGRP 00010 permission, which means that the file user group has execution permissions
S_IRWXO 00007 permissions, which means other users have the permissions to read, write and execute operations
S_IROTH 00004 permissions, which means other users have readable permissions
S_IWOTH 00002 permissions , which means other users have writable permissions
S_IXOTH 00001 permission, which means other users have execution permissions

The following will give you a detailed introduction to the mkdir function in Linux

mkdir function

Header file library:

#include < ;sys/stat.h>

#include

Function prototype:

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

Function description:

mkdir() function starts with Mode mode creates a directory named with the parameter pathname, and mode defines the permissions of the newly created directory.

Return value:

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

mode mode:

S_IRWXU 00700 permission, which means that the file owner has the permission to read, write and execute operations

S_IRUSR(S_IREAD) 00400 permission, which means that the file owner has readability

S_IWUSR(S_IWRITE) 00200 Permissions, which means that the file owner has writable permissions

S_IXUSR(S_IEXEC) 00100 permissions, which means that the file owner has execution permissions

S_IRWXG 00070 permissions, which means that the file user group has read, write and execute permissions
S_IRGRP 00040 permissions, which means that the file user group has readable permissions
S_IWGRP 00020 permissions, which means that the file user group has writeable permissions
S_IXGRP 00010 permissions, which means that the file user group has execution permissions
S_IRWXO 00007 permissions, which represents other users Have permissions to read, write and execute operations
S_IROTH 00004 permissions, representing other users with readable permissions
S_IWOTH 00002 permissions, representing other users with writable permissions
S_IXOTH 00001 permissions, representing other users with execution permissions

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