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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.
What are User threads User threads are supported above the kernel and are executed by a thread library at the user level. Thread creation & scheduling are done in the user sp
Q. Define COM Programs? A COM (Command) program is binary image of a machine language program. It is loaded in memory at the lowest available segment address. Program code star
Why do we need Registers? If t cpu is cycle time of CPU which is the time taken by CPU to execute a well-defined micro-operation employing registers and t mem is memory cycl
Explain SR Latch with NAND Gate? SR Latch has two useful states: Set state, when output Q=1 and Q'=0. Reset state, when output Q=0 and Q'=1.Output Qand Q' are normally
Java Database Connectivity (JDBC) With two different types of technologies available in the market today viz., the Windows and the Java technologies developed by the Microsoft
A Canvas object gives access to a Graphics object by its paint() method.
The following branch prediction algorithms are suggested: 1) Guess that the branch will be taken if the previous one was taken; predict not taken otherwise. 2) Guess that the
What is the use of status command, data output command, and data input command. A status command is used to test a variety of status conditions in the interface and the periphe
The C programming language is a standardized programming language forrned in the early 1970s by Ken Thompson and Dennis Ritchie for use on the UNIX operating system. It has since s
The FontMetrics class is used to describe implementation-specific properties, like ascent and descent, of a Font object.
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