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When the user is inputting commands into your shell, it should properly handle delete and backspace. When one of these characters is detected, you will need to remove one character from the screen. For this, you can simply print a "\b" character to the screen. This will act as the backspace. Remember also to remove the character from the buffer you are using to store the
input. Here are the byte values for the delete and backspace characters:
delete --> 127
backspace --> 8
When the user presses delete or backspace, it should remove a character from the screen. But, it should not remove any of the prompts. For example, if the console looks like the following after the user typed the character "a",
/home/ p r o j e c t s / cs200 / spring12 / s h e l l >a
then if the user presses the backspace twice, the console should still look like:
/home/ p r o j e c t s / cs200 / spring12 / s h e l l >
Notice that the prompt is still intact.
Important points of simulations In this simulation it is essential to consider: (1) What and how data is gathered (2) How simulation is done (3) How system would wo
POSIX is the IEEE's Portable Operating System Interface for Computer Environments. The standard provides compliances criteria for operating system services and is designed to allow
Q. Explain about Open System? The 'Open System' is a system within its environment. It receives input from environment as well as provides output to environment. Illustrati
First-Order Logic We, as humans, have always prided ourselves on our ability to think things through for this reason things are out and come to the only conclusion possible in
How is a property designated as read-only? In VB.NET: Public Read-Only Property Property Name As Return Type Get? Your Property execution goes in here End Get End Property.
Q. What do you eman by Processors Hypercube? This is precise to in the hypercube. Every processor is portrayed by set of nodes of graph and different arcs are represented with
In the statement Write:/15(10) lfa1-lifnr. The values 15 and 11 can also be defined by variable. No, the value of 11 nad 15 is not described by variable.
SEARCH is a sequential search from the starting of the table. SEARCH ALL is a binary search, continually dividing the table in two halves until a match is found. SEARCH ALL is more
The lrd_stmt function associates a character string (generally a SQL statement) with a cursor. This function sets a SQL statement to be processed.
What is the difference between the C#.NET and VB.NET? VB.NET - It don't have the XML Documentation. - It don't have the Operator Overloading. - It dont't have the P
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