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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.
A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome
Virtual Private Networks (VPN) In order to encrypt/decrypt all the communication network traffic that passes through the Internet or Intranet, a VPN uses software or hardware.
SMLI firewalls are different from the conventional The SMLI firewalls are different from the conventional "stand in" proxies in a way that the stand-in proxies are used for th
Which is more efficient, a switch statement or an if else chain? Ans) The differences, if any, are likely to be small. The switch statement was designed to be efficiently impl
How can I printout the formulas in an Excel spreadsheet - rather than the results? Ans) The trick is to change the way Excel shows the worksheet before you choose to print. Ch
In the first part of Assignment 2A you will develop a simple Patient class, representing an Patient who is to be admitted for a minor procedure that only requires a 1-2 day stay in
the counter shown Q2Q1Q0=000 The status of Q2Q1Q0 after the pulse
Q. Define Various classes of Interrupts? Figure below gives list of some common interrupts and events which causes occurrence of those interrupts. Figure: Various clas
Let's answer our second question first. All computers have a Unit which performs arithmetic and logical functions. This Unit is called as Arithmetic and Logic Unit (ALU). However h
Optical storage - computer architecture: Optical storage, the distinctive Optical disc, stores information in deformities on the surface of a circular disc and reads this info
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