File Related System Calls
File Related System Calls
Copyright(c) Management Analytics, 1995 - All Rights Reserved
Copyright(c), 1990, 1995 Dr. Frederick B. Cohen - All Rights Reserved
- The Access call determines the accessibility of a
file to the current user.
- The Chmod call changes the protection bits associated with a
file.
- The Chown call changes the owner of a file.
- The Chgrp call changes the group of a file.
- The Link call links a file name to an existing
file.
- The Mount call mounts a file-system making it
accessible as a directory.
- The Umount call unmounts a file-system from a
directory.
- The Pipe call creates a ``pipe'' for simulating a temporary
file used as the output of one process and the input of
another process.
- The Stat call determines the status of an opened
file.
- The Umask call gets or sets the mask used to set file
protections when a file is created.
- The Unlink call removes a link between a filename and
an inode, and if there are 0 links left to the inode,
returns the file space and inode to the system, thus
affecting a file deletion.