Rust adaptation of windows and linux commands.

cargo install kms
| Command | Arguments | Description |
| :-------- | :------- | :------------------------- |
| ls | <file_name> | Display files in directory |
| mkdir | <dir_name> | Create new directory |
| touch | <file_name> | Create new file |
| rmdir | <dir_name> | Remove directory |
| del | <file_name> | Remove file |
| cat | <file_name> | Read file |
| tail | <file_name> | Get 10 last lines of file |