Unix-File-System

Working Unix file storage system with Create, Read, Write, Open, Delete and Seek functionality, written in C++

Commands

CREATE type name

type: type of file to be created. U: User Data File, D: Directory File

name: name of file to create

Create File CREATE U file1

Create Directory CREATE D Dir1

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OPEN mode name

mode: how you want to openn the specified file

I - Input: READ and SEEK

O - Output: WRITE

U - Update: READ, WRITE and SEEK

name: name of file

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READ n

n: number of bytes to be read. READ can only be performed after OPEN I or OPEN U and must be followed by CLOSE

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WRITE n data

Writes n bytes of data into an OPENed file

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SEEK base offset

base Indicates starting point of file

-1: beginning of the file

0: current position in the file

1: EOF

offset Indicates the number of bytes from to which file reading pointer should be moved to

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DELETE name

Deletes a file provided its name

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CLOSE

Closes a file. Can only be used after a file is OPENed or CREATEd