System Commands OPPE 1: September 2022 (September 2022 term)

Create a link named todo in the current directory that its source is /todo.txt such that the link should work after deleting and creating the file /todo.txt

Write a command to move the file (not directory) that has the extension .jpg or .jpeg in the current working directory to the directory named photos present in the current working directory. Create photos directory if it is not present in the current directory.

Write a script to read an integer from standard input and check for the divisibility of 7 and print YES <number> <remainder> if it is divisible else print NO <number> <remainder> Replace the <number> with integer read from stdin and <remainder> with remainder when divided by 7.