Please comment all lines create a python script and run it to do the following: -    Import os, Display the current directory, Create a new directory (net) in your c: or any other drive, Create two subdirectories in net, Create an empty file in the first subdirectory and another file in the second subdirectory, Check if the files you created in the previous step exists, Check if the files you created in the previous step read only, Check if the files you created in the previous step have write attribute and  List the directories and files.

please help, i use mac terminal so pls also include how to compile and run

Which of the following statements best describes the benefits and drawbacks associated with disk write caching?

Write a C program to remove an empty directory In this program it is required toread the name of the empty directory and Then need to remove the given empty directory using the system () function.

This is keeping Linux and C programming in mind, thank you.

please write C code 4, Assuming a file consists of fixed-length logical records, whose type is defined as t_record. The operating system only supports sequential-access to files via the following three system calls. t_record *read_next() // read the next record pointed to by the file pointer, advance the file pointer by one record, // and return a pointer pointing to the record read from the file void write_next(t_record rec) // write the record rec to the location pointed to by the file pointer, // and advance the file pointer by one record void reset() //reset the file pointer to the beginning of the file WRITE code in C (NO syntax error, please!) to implement/define the following two C functions to simulate direct access read and write operations on this operating system that only supports sequential-access to files. (Hint: there is no guarantee on where the file pointer is when any one of the following two functions is called.) t_record *read(int n) // read the n-th record in the…

Write a Python program to list all the files which is present under "/" directory.