What are the different file operations?, Operating System

Assignment Help:

What are the different file operations?

Create: - Space for the file in the file system update directory table.
Write: - file name and data to be written is passed into the kernel and it write pointer points to the next possible location to which we can write.
Read:-file name is passed to the kernel and Read pointer points to the current position.
Delete a file:-kernel checks in the directory as well as removes the file from there.
Truncation: - Erase (remove) the content of the file.

Related Discussions:- What are the different file operations?

Explain message passing among systems, Q. Explain Message passing among sys...

Q. Explain Message passing among systems? Communications- Message passing among systems requires messages to be turned into packets of information and sent to the network contr

Explain the os/2 operating system, Explain the OS/2 Operating System Li...

Explain the OS/2 Operating System Like NetWare, OS/2 manage resources at three levels, as shown in Figure 4.5 Resources may be maintained at the session, process, and thread le

Explain file structure, File structure Certain files must conform to a ...

File structure Certain files must conform to a needed structure that is understood by the operating system. The operating system may consist that an executable file has a parti

Explain the statements present in assembly language, Explain the Statements...

Explain the Statements Present in Assembly Language An assembly program consists of subsequent three types of statements: a. Imperative statements: this point out an action

What is single-level directory, What is Single-level Directory All file...

What is Single-level Directory All files are constrained in the similar directory, which is simple to support and understood. One limitation is when the number of files enhance

Objectives and functions of an operating system, Question: a) What is ...

Question: a) What is an Input/Output module and what are the five categories their functions fall into? b) What is an Operating System? Briefly describe the two objectives

Difference between system calls and procedure calls, The Most comman differ...

The Most comman difference are given below System calls are heavy. While a procedure call can generally be performed in a few system instructions, a system call needs the c

Define ufd and mfd, Define UFD and MFD. In the two-level directory stru...

Define UFD and MFD. In the two-level directory structure, every user has her own user file directory (UFD). Every UFD has a similar structure, but lists only the files of a one

Explain long term scheduling, Long term scheduling Scheduling explicitl...

Long term scheduling Scheduling explicitly performed when a new process is created and it determines which programs are admitted to the system for processing. Therefore it cont

What is the main problem with the fcfs scheme, Question : a) Consider ...

Question : a) Consider table 1.0 below, assume the processes arrived in the order P 1 , P 2 , P 3 , P 4 at time shown and need the indicated burst time (both in milliseconds)

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages