Extended Version of V6 File system

Objective : To create an extended version of V6 file sytem to support file size upto 4GB.

How to Compile and build using CMake

1. mkdir build/
2. Inside build folder cmake ../src
3. cmake --build .

Commands that are supported:

1. initfs fname num_blocks num_inode
   Initializes a v6 file system with num_blocks of blocks and num_inode of i-nodes
2. open fname
   Opens the external file fname which has a v6 file system installed
3. cpin from_file_name to_file_name
   Creates a new file called to_file_name in the v6 file system and fills in the contents of the newly created file with the contents of the external file from_file_name
4. cpout from_file_name to_file_name
   If to_file_name exists in v6 file system,It create a external file to_file_name with from_file_name's content
5. rm v6_file
   if v6_file exist, deletes the file
6. rmdir v6_directory
   if v6_directory exists, deletes the directory
7. pwd
   Lists the file path name of the current directory
8. ls
   Lists the content of current directory
9. mkdir v6_directory
   Creates a directory v6_directory in v6 file system
10. cd v6_directory
    Change current working directory to the dir name
11. q
    Exits the v6 file system