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Add a new built-in path command that allows users to show the current pathname list, append one pathname, or remove one pathname. In your shell implementation, you may keep a data structure to deal with the pathname list. If you do not use execle() or execve() that allows you to execute with your own environment variables, you will need to add it to the "real" PATH environment variable for executables in the path to work correctly. The initial value of path within your shell shall be the pathname list contained in the PATH environment variable. Implement the path command as follows: • path (without arguments) displays the pathnames currently set. It should show pathnames separated by colons. For example, "/bin:/user/bin". • path + ./bin appends the pathname to the path variable. You may assume that only one pathname is added at a time. • path - ./bin removes the pathname to the path variable. You may assume that only one pathname is removed at a time
Write a brief description of this distribution (shape, center, spread, unusual features).
An article in The Wall Street Journal noted that an" increase in the price of crude oil quickly reduces demand for oil". Do you agree with this statement?
On information technology, what is a customized and ready-made? What are the uses and benefits of each?
Question1: In the aftermath of the global financial crisis, attention has significantly shifted to how banks and financial institutions manage risks.
Assume a cache has 16 1-word blocks and is initially empty. Placement is by direct mapping. Also, state whether each reference is a hit or a miss.
PeopleSharz is aiming to become financially self-sufficient by the end of 2014 at the latest. It is at this time that their venture capital funds will be exhausted but they estimate, once they hit the 50M user mark, and have deployed into production ..
Based on your study this week, what routing and switching protocols would you choose for your Small Office/Home Office (SOHO) network?
Links AC and BC have negligible weight and are connected together at C by a pin.
Creae a concept of an info system (make it up). Then create a: 1. Data Flow Diagram and Entity Relationship Diagram 2. Activity Diagram
For this assignment, you are a project manager. Your management has asked you to plan a project to develop an online shopping application to run on the newest model of the Blackberry smartphone. You know Blackberry has had its challenges in the ma..
Linear regression was found between two variables. The equation is: Y = 123 - 12.5X. Values for X that were used to develop the equation ranged from 2 to 10.
The Premier is wrong about the effect of taxes on the consumption of cigarettes. Now that the tax on cigarettes is lower it is true that the demand.
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