The UNIX system is mainly composed of three different parts: the kernel, the file system, and the shell. [The kernel] is that part of the system which manages the resources of whatever computer system it lives on, to keep track of the disks, tapes, printers, terminals, communication lines and any other devices. The file system … Read more
/etc/passwd is a text file that contains the attributes of (i.e., basic information about) each user or account on a computer running Linux or another Unix-like operating system. DESIGN The permissions for /etc/passwd are by default set so that it is world readable, that is, so that it can be read by any user on … Read more
LINUX/UNIX has three most important parts. They are Kernel, Shell and File System Figure: Layers of Linux Kernel Kernel is the heart of the operating system. It is the low level core of the System that is the interface between applications and H/W. Functions Manage Memory, I/O devices, allocates the time between user and process,inter … Read more