Control Structures in Perl
Control Structures in Perl Controlling the Execution Flow in a Program. 2 CSci 132 Practical UNIX with Perl Control flow in programs A program is a collection of statements. After the program executes one statement, it "moves" to the next statement and executes that one. If you imagine that a statement is a
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Chapter 1 Introduction to System Programming
www.compsci.hunter.cuny.eduChapter 1 Introduction to System Programming ... ariousv header les, and the ariousv les used by the system. amiliaritFy with basic C programming is assumed.
Perl Data Types and Variables
www.compsci.hunter.cuny.edu4 CSci 132 Practical UNIX with Perl Three data classes However, Perl does distinguish the class of data, i.e., whether it is primitive or structured. Scalars are primitive and lists and hashes are structured: scalar data a single data item list data a sequence or ordered list of scalars hash data an unordered collection of (key,value) pairs Scalars may be numbers such as 12 or 44.3 or strings like
Chapter 3. File Systems and the File Hierarchy
www.compsci.hunter.cuny.eduChapter 3 File Systems and the File Hierarchy Stewart Weiss Chapter 3 File Systems and the File Hierarchy ... As disks grew in size it became advantageous in operating system design to partition them into ... more control of security di erent user groups could be placed into di erent partitions, and
Inheritance and Class Hierarchies
www.compsci.hunter.cuny.eduThe derived class has access to all public and protected members of the base class. Public inheritance expresses an is-a relationship: a B is a particular type of an A, as a car is a type of vehicle, a manager is a type of employee, and a square is a type of shape.
Creating and Using are w Soft Libraries 1
www.compsci.hunter.cuny.edue Softwar Design e ctur e L Notes ating e Cr and Using e Softwar aries Libr of. Pr Stewart eiss W Creating and Using are w Soft Libraries 1 tro Induction These notes
Arrays in C/C++
www.compsci.hunter.cuny.eduSuppose that we want a program that can read in a list of numbers and sort that list, or nd the largest avlue in that list. oT be concrete about it, suppose we have 15 numbers to read in from a le and sort into ascending order. We could declare 15 ariablesv to store the numbers, but then how could we use a loop to compare the ariablesv to each ...
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