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When your shell is waiting for input from the user, it should first print a prompt. The prompt should consist of the current working directory followed by the _>_ character. Here is an example of the prompt:
/home/ p r o j e c t s / cs200 / spring13 / s h e l l >
After a user performs a command, the prompt should be printed again on a new line. If the user changes the current working directory, your prompt should show the change. I would recommend using the printf() function from stdio.h for printing the prompt.
Q. What is the Concept of Lock? Locks are used for protected access of data in a shared variable system. There are numerous kinds of locks: 1) Binary Locks: These locks a
(a) How does a data cache take advantage of spatial locality? Give an suitable example. (b) What are the basic differences between a write-allocate and no-write-allocate po
Mathematical Simulation and Modelling Applications The tasks include mathematical simulation and modelling need lots of parallel processing. Three fundamental formalisms in mat
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Variables and Quantifiers for First-order models -artificial intelligence: So what do sentences containing variables mean? In other words, how does first order model select whe
The field SY-STEPL refers to The index of the screen table row that is presently being processed. The system variable SY-stepl only has a meaning within the confines of LOOP.
Explain Sequential sharing. Sequential sharing: In this technique of sharing, a file can be shared through only one program at a time, it is file accesses by P1 and P2 are
What are the types of data warehouses? Various types of data warehouses are illustrated below: a) Financial Data Warehouses b) Insurance Data Warehouses c) Human Resou
The Elements of composition are the formal language used to communicate in the visual arts. The elements of composition can be loosely broken into 5 main elements, Line, shape, val
End systems are connected together by communication links. There are various types of communication links, which are made of numerous types of physical media, comprising twisted pa
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