Write a function to insert a sentence in a text file, assuming that text file is very big and can't fit in computer's memory.

Write a program to read a file 'Story.txt' and create another file, storing an index of 'Story.txt', telling which line of the file each word appears in. If word appears more than once, then index should-show all the line numbers containing the word.

Write a program to accept a filename from the user and display all the lines from the file which contain Python comment character '#'.

Reading a file line by line from the beginning is a common task. What if you want to read a file backward ? This happens when you need to read log files. Write a program to read and display content of file from end to beginning.

Write a Python program to display the size of a file after removing EOL characters, leading and trailing white spaces and blank lines.

Write a function Remove_Lowercase() that accepts two file names, and copies all lines that do not start with lowercase letter from the first file into the second file.

Write a program to display all the records in a file along with line/record number.

Write a method in Python to write multiple line of text contents into a text file "mylife.txt".

Write a program to add two more employees' details (empno, ename, salary, designation) to the file "emp.txt" already stored in disk.

Write code to open the file in the previous question and print it in the following form:

Name : <name>    Phone: <phone number>