introduction to linux shell programming

... The constructor without parameters is called _________. [0.5] a) main constructor c) default constructor b) zero valued constructor d) non-parameterized constructor 64. Static constructor has _______ ... respect to destructors. [2.0] a) Destructors can be invoked explicitly. c) When an instance is destructed, the destructors in an inheritance chain are called in order, from most derived to least ... Constructors? [1.0] a) The constructor can have the same name as that of its class. c) The constructor may or may not have name same as that of the name of its class. b) The constructor can...

Ngày tải lên: 09/04/2013, 09:10

... name ã SHLVL: Contains the shell level that you are currently working in ã SHELL: Stores the users default shell Shell as a Command Interpreter (Contd.) The shell creates a child shell for the execution ... palindrome" fi Linux Shells ã Some of the popular shells available in Linux are: ã Bash: ã Is an acronym for ‘Bourne Again Shell and is the default shell for most Linux systems ã Uses ... Core 2 Unix Shells ã Some of the popular Unix Shells are: ã Bourne Shell: sh is the executable filename for this shell ã C Shell: csh is the executable filename for this shell ã Korn Shell: The...

Ngày tải lên: 21/01/2014, 17:20

Ngày tải lên: 22/03/2014, 16:20

Ngày tải lên: 28/04/2014, 15:33

Ngày tải lên: 26/10/2014, 20:34

... (stream extraction operator) ã Used with std::cin ã Waits for user to input value, then press Enter (Return) key ã Stores value in variable to right of operator Converts value to variable data type ã ... (assignment operator) Assigns value to variable – Binary operator (two operands) –Example: sum = variable1 + variable2; 2003 Prentice Hall, Inc. All rights reserved. 24 Introduction to Object Technology ã ... Operators Standard algebraic equality operator or relational operator C++ equality or relational operator Example of C++ condition Meaning of C++ condition Relational operators >...

Ngày tải lên: 25/04/2013, 19:12

... directories you had been in (changed to) by pushd command. There are other options to pushd and popd to manipulate the contents of the directory stack and to change to directories not at the top ... pathname stored in a shell variable to be used (3.6). history The history mechanism of the shell allows previous commands to be repeated, possibly after modification to correct typing mistakes or to ... by the shell when it notices that the du program stopped. Forbackground jobs, using the stop command, it is An Introduction to the C shell USD:4-5 1.4. Metacharacters in the shell The shell...

Ngày tải lên: 15/12/2013, 20:15

... Text of a Programming Object 2 Introduction to Views 4 Advantages of Views 6 Creating Views 7 Introduction to Stored Procedures 12 Introduction to Triggers 15 Introduction to User-defined ... Module 9: Introduction to Programming Objects Review ! Displaying the Text of a Programming Object ! Introduction to Views ! Advantages of Views ! Creating Views ! Introduction to Stored Procedures ! Introduction ... the edit pane to alter the view. 3. On the toolbar, click the New Query button to open a new Query window. This opens a new connection to SQL Server. 4. Write a SELECT statement to retrieve...

Ngày tải lên: 21/12/2013, 19:15

... strange to say Chapter 1 :An Introduction to Device Drivers As the popularity of the Linux system continues to grow, the interest in writing Linux device drivers steadily increases. Most of Linux ... plugged into the computer. The Linux kernel therefore embeds a SCSI implementation (i.e., the mapping of file operations to the SCSI communication protocol). The driver writer has to implement ... which the interface to the user is narrowly defined and highly controlled. Before digging into programming, we'd like to comment on the version numbering scheme used in Linux and which versions...

Ngày tải lên: 24/12/2013, 01:17

Ngày tải lên: 28/12/2013, 22:17

... subdividing it into conven ient p ieces, top-down programming tends to produce a design that is unique to that problem. It is unlikely that you will be able to take a large chunk of programming from ... common, are grouped together as s ubclasses of JTextComponent. Similarly JButton and JToggleButton are subclasses of JAbstractButton, which represents properties common to both buttons and checkboxes. ... Preface Introduction to Programming Using Java is a f ree introductory computer programming textbook that uses Java as the language of instruction. It is suitable for use in an introductory programming...

Ngày tải lên: 19/01/2014, 16:20

... 9 Pro Bash Programming: Scripting the GNU /Linux Shell Dear Reader, The shell is a programming language! A shell script is as much a program as anything written in C, Python, or any other programming ... because shell scripts are easier to write doesn’t mean they should take a back- seat to compiled programs or other scripting languages. I wrote Pro Bash Programming to present a tutorial that ... introduces the shell, and bash specifically, as a programming language. If you need a program to accomplish a task on GNU /Linux or any other Unix-type system, I want you to consider the shell before...

Ngày tải lên: 17/02/2014, 17:20

... WHILE loop stops. Final Value of A is 3. While Statement - Example ã To find factorial of a number N. What is a factorial? Factorial of a number N is N! = 1x2x3xx(N-1)xN ã 1! = Factorial (1) ... Range Int Stores integer values EX: 5, -3200 -32,768 to +32,767 Long Stores integer values with extended range EX: 56, 6000, -4,234,128 -2,147,483,648 to +2,147,483,647 float Stores values ... (score <60) { PrintToScreen(“You failed the test”);} If (score == 60) // ‘==‘ means ‘if equal to { PrintToScreen(“You passed the test”);} If (score > 60) { PrintToScreen(“You passed the...

Ngày tải lên: 05/03/2014, 18:20

... Chapter 1 Introduction to Object-Oriented Programming and Software Development Introduction efore we begin to write actual programs, we need to introduce a few basic concepts of object-oriented programming( OOP),thestyle ... related to the Internet and Web browsers in Section 0.4. 4 Chapter 0 Introduction to Computers and Programming Languages network LAN WAN internet If you want to learn more about the history of ... objects with the names Moto-1 and Moto-2 and one Customer object with the name Jon Java. Inside a program we write instructions to create objects. For the computer to be able to create an object,...

Ngày tải lên: 08/03/2014, 02:20

... top-down from bottom-up approaches to problem solving? Illustrate your answer with reference to the problem of a car, motor-cycle or bicycle having a fl at tire. 26 3 Introduction to Programming ... has proved to be very important in programming. It enables a complex task to be broken down into smaller parts concentrating on what we want to happen rather than how we want it to happen. ... more and more problems are tackled, top-down becomes one of the most effective methods for programming. 2.5.2 Bottom-Up Bottom-up is the reverse to top-down! As before you start by defi ning...

Ngày tải lên: 10/03/2014, 02:20

... activities to run in parallel  2003 Prentice Hall, Inc. All rights reserved. 2 Chapter 1 – Introduction to Computers and C++ Programming Outline 1.16 History of the Internet 1.17 History of ... rights reserved. 24 1.12 Structured Programming ã Structured programming (1960s) – Disciplined approach to writing programs – Clear, easy to test and debug, and easy to modify ã Pascal 1971: Niklaus ... object std::cout Connected to screen << ã Stream insertion operator ã Value to right (right operand) inserted into output stream ã Namespace std:: specifies using name that belongs to namespace...

Ngày tải lên: 10/03/2014, 06:20

... editor. The editor that contains the program you are currently working with is called the active editor. The Toolbar, identified by [2] is used to issue commands either to the active editor ... An introduction to Programming Figure 38 - Move a hundred pixels Drawing a Square A square has four sides, two vertical and two horizontal. In order to draw a square we need to be able to ... the barrier and serve as a stepping stone to the amazing world of computer programming. The Small Basic Environment Let us start with a quick introduction to the Small Basic Environment. When...

Ngày tải lên: 17/03/2014, 23:20

... writing to the file mynewfile.txt overwrites its existing contents. To append to a file, one of the constructors of the FlieWriter class takes a boolean which if set to true writes text to the ... chapter demonstrate, we need to know enough about generics in order to use Java’s Collection Framework correctly. As we saw in Section 3.5 in An Introduction to Java Programming 2: Classes in Java ... is stored externally to the application to a .dat file on (the author’s) C: drive. 1.5 Files and File I/O File objects and file streams are useful when an application needs to write data to...

Ngày tải lên: 18/03/2014, 02:20