an introduction to linux shell scripting for dbas

Ngày tải lên: 24/04/2014, 12:29

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Ngày tải lên: 17/10/2013, 19:15

... what theyare doing and prompting for another command. While the shell is executing another command and waiting for it to finish, the shell does not listen to interrupts. The shell often wakes up ... options to pushd and popd to manipulate the contents of the directory stack and to change to directories not at the top of the stack; see the csh manual page for details. Since the shell remembers ... very useful if you have used cd to change to another directory and have found a file you wish to copyusing cp. If I give the command cp thatfile ˜ the shell will expand this command to cp thatfile /usr/bill since...

Ngày tải lên: 15/12/2013, 20:15

... GPL and its use. If you want to read the license, you can find it in several places in your system, including the directory /usr/src /linux, as a file called COPYING. Third-party and custom ... a tour of the kernel source: it is meant to be a starting point for people who want to understand the overall design, but who may be scared by the huge amount of source code that makes up Linux. ... char drivers and shows the complete code for a memory-based device driver that can be read and written for fun. Using memory as the hardware base for the device allows anyone to run the sample...

Ngày tải lên: 24/12/2013, 01:17

Ngày tải lên: 26/01/2014, 07:20

Ngày tải lên: 26/01/2014, 07:20

... which an organization operates. In addition, companies must decide who is responsible for enforcing and managing these policies and determine how employees are informed of the rules and watch ... plan to protect their customers. In addition to protecting their customers, corporations must protect their employees and partners from security breaches. The Internet, intranets, and extranets ... downtime for employees, and networks must be taken down in order for damage to be repaired or data to be restored. Clearly, loss of precious time and data can greatly impact employee efficiency and...

Ngày tải lên: 14/03/2014, 22:20

... Moreover, an investor who wants to buy a put option will have to pay for it, whereas no payment is involved when a forward contract is exchanged. Exercise 1.9 Once again, let the bond and stock prices ... Laplace Transforms and Fourier Series P. P. G . D y k e Introduction to Ring Theory P. M . C o h n Introductory Mathematics: Algebra and Analysis G. Smith Linear Functional Analysis B.P. Rynne and ... $100. An investor may wish to trade simultaneously in both kinds of options and, in addition, to take a forward position. In such cases new symbols z 1 ,z 2 ,z 3 , will need to be reserved for...

Ngày tải lên: 22/03/2014, 09:20

... carbon and oxygen atoms; acetone contains carbon, hydrogen and oxygen atoms; chloroform contains carbon, hydrogen and chlorine atoms. It is very unusual for a molecule to contain more than seven ... by the number and type of atoms themselves. D Solids, liquids and gases The fact that substances can exist as solids, liquids or gases, and can change from one of these states to another, is explained ... conversion chart. 14 AN INTRODUCTION TO MATERIALS atom molecule bonds C Atoms and molecules Molecules may consist of two or more atoms bonded together. Usually the atoms are of several different elements:...

Ngày tải lên: 23/03/2014, 01:20

Ngày tải lên: 27/03/2014, 11:51

... is also equivalent to being able to place the elements of A into 1–1 correspondence with the elements of Z. TLFeBOOK AN INTRODUCTION TO NUMERICAL ANALYSIS FOR ELECTRICAL AND COMPUTER ENGINEERS TLFeBOOK ... processing, and is an instance of something called finite impulse response (FIR) filtering. You will find it useful to note that a k = 0fork<0, and k>n,andthatb j = 0for j<0, and j>m. ... always understood to be present. TLFeBOOK AN INTRODUCTION TO NUMERICAL ANALYSIS FOR ELECTRICAL AND COMPUTER ENGINEERS Christopher J. Zarowski University of Alberta, Canada A JOHN WILEY & SONS, INC....

Ngày tải lên: 31/03/2014, 15:09

... Faster to Develop An Introduction to Android for Developers Life Cycle of an Application Intents & IntentFilters ã Intents: description of what you want done ã IntentFilter: what an Activity ... with Android Development ã Get the Environment Set Up and Working ã Create Some Demo Apps (Tutorials) ã Demonstrate the Tools / Environment ã Introduction to the Documentation ã (Which is changing ... processes ã Many Activities, Services, etc. can run in the same process ã Processes are started and stopped as needed to run an application's components ã Processes killed to reclaim resources ...

Ngày tải lên: 01/04/2014, 10:20

... These questions all lead us to the topics of intermolecular forces and bond formation. We know that atoms approach each other only to a certain distance, and then, if they form a compound, they will ... lattice has many (111) planes, for example, all of which are parallel to one another. There is a uni- form distance between like planes in a lattice, which we call the interplanar spacing and designate ... is much smaller for positive ions and much larger for negative ions than the corresponding isolated atom (why?), and it follows the same general trend as for the isolated atoms. For the discussion...

Ngày tải lên: 02/04/2014, 15:46

... baseband signal bandwidth to be transmitted is less than the coherence time of the channel. For example, if an IEEE 802.11b signal that occupies 11 MHz of baseband bandwidth is to be transmitted ... like to acknowledge the numerous individuals who have helped make this book a reality. First and foremost, we would like to acknowledge Brian Haberman and Julia Andrusenko for their assistance ... important to understand the cost that will be incurred by M & S, or such efforts may have to be scaled back to a lower degree of fi delity to manage cost. It is ultimately up to the reader to...

Ngày tải lên: 02/04/2014, 15:49

... b-(T, V, ~), and G G(T, p, ~) are called the thermodynamic potentials for the characteristic variables S and V; S and p; T and V; and T and p; respectively. An irreversible process advances, if ... dissociated cations and anions is equal to the chemical potential of the undissociated molecules at equilibrium. In an electrolyte solution the chemical potentials of a cation and an anion can not be ... of two gases to form a gas mixture at constant pressure and temperature. The Extent of Chemical Reaction For a homogeneous binary mixture consisting of substance 1 and substance 2, we then...

Ngày tải lên: 02/04/2014, 16:43

... when (a) f = f 0 cos(πx/L)and(b) f = f 0 . Solution: For this problem, we c an choo se φ 0 = 0 or a constan t (i.e., the solution can be determined only within a constant) and φ i =cosiπx/L. The ... EA, EI , f,andq are functions of x,andM 0 is a constant. Here u denotes the axial displacement and w the transverse deflection of the beam. Solution: The first step of the formulation is to multiply ... M cGraw-Hill Companies, Inc. All rights reserved. wz, q 0 EI = constant x L 92 AN INTRODUCTION TO THE FINITE ELEMENT METHOD Problem 4.35: The bending moment (M) and transverse deflection...

Ngày tải lên: 08/04/2014, 10:38

Ngày tải lên: 28/04/2014, 17:08

Ngày tải lên: 08/05/2014, 10:07