Comparing and contrasting the Bash Shell scripting language with the Ruby Programming language At first glance these two languages appear to be poles apart. Bash shell script with its roots in Unix terminal scripting versus a modern object oriented scripting language'. So, are these two languages really so different and what might they have in common? This documents aims to answer these questions. The Bash Shell was implemented in 1989 by Brian Fox. Its purpose was to act as a 'command processor'. In other words, this language would act as an interface between the user and the GNU operating system (primarily installed on Linux based systems). Bash scripts are created with an editor and are run with the Unix sh command. The Bash language itself is highly procedural, supporting shell variables and procedural constructs such as ifs and loops. Bash provides an excellent medium for combining Unix commands and their outputs in almost limitless ways. The Ruby programming language which was devised by Yukihiro "Matz" Matsumoto, arrived approximately five years later with the goal of making programmers more productive and trying to make the process of creating software enjoyable. Ruby itself can be used to create graphical user interfaces (guis) and is the cornerstone of the ‘Ruby on Rails’ web application framework. Three elements of code syntax that define and differentiate programming languages are: degree of free-formness, case-sensitivity, and statement terminators. Based on these elements Bash and Ruby have quite a lot in common. Both languages are case-sensitive and have no statement terminators. However, Ruby is considerably more free-form than Bash where even a poorly placed space can prevent a command from executing p... ... middle of paper ... ...rver). So, we should not be surprised to learn that Bash allows us to run any Unix command in a background mode simply by appending an ampersand (&). In this sense Bash does appear to support concurrent programming, but only at a very coarse-grained level. Ruby however, offers finer control through Ruby threads. Ruby threads are not true operating system threads but do allow us to emulate them and are quite adequate for most situations where concurrent processing is required. The latest version of Ruby (version 1.9) now offers a feature called ‘Fibers’ which offer further concurrent abilities. In conclusion then, Ruby does appear to offer vastly superior language features whereby more can be accomplished in less code. Although it should not be forgotten that the languages themselves have quite different roles and we really are comparing apples with oranges here.
3. Multi-threading occurs when multiple programs are processed at the same time or when several parts of a program are processed at the same time.
C language- I spent much of time to learn Pascal, so it is not easy to turn on another language Due to the syntax change in several days. So, I know I need to work longer on it.
“We lie so much/ truth has a false ring and its hard to tell,” (Williams, “Ruby Tells All” 15). This is just one of the many life lessons the speaker of the poem, “Ruby Tells All,” by Miller Williams, learns in her long life. The voice of Ruby in this confessional style poem is a wise one. Ruby shares her philosophy on life with the audience, conveying through her tone that she is resigned about what she has learned. Life is not what she thought it would be. But, Ruby also admits that despite everything unpleasant, there are good parts to life as well. In “Ruby Tells All,” the tone, language, and style give insight into who Ruby is and how she feels about life.
Struggle of Acceptance In Flannery O'Connor's collection of short stories A Good Man is Hard to Find, Ruby’s physical journey reveals her inner struggle to accept her gift of pregnancy from God. Burdened by her physical and emotional load Ruby feels daunted by impending motherhood. In A Stroke of Good Fortune, Ruby undergoes a state of denial through rejection of her pregnancy, exemplifying her desire for total control over her own life. As she climbs the stairs the minor characters assist Ruby during this period of denial, propelling her to accept pregnancy and motherhood.
Thibodeau, Patrick. “Windows, Linux Servers Chip Away at Unix.” Computerworld. 10 Dec. 2007: 16+. Academic Search Premier. Ebscohost. Wilkes U, Wilkes-Barre, Farley Lib. 21 Feb. 2008 .
8. Eigsti, I., & Cicchetti, D. (2004). The impact of child maltreatment on expressive syntax at
Python is different type of programming languages in which it uses indentation to separate code into blocks or sub program. Java, like most other languages, uses curly braces to define the beginning and end of each function and class definition.
Concurrency is a feature that allow multiple users of a database to read, modify or updat...
“Python is an experiment in how much freedom programmers need. Too much freedom and nobody can read another's code; too little, and expressiveness is endangered.” These were the words of Guido Van Rossum ( the Creator of Python) when The idea of Python was conceived in the 1980s of the 20th century and brought to life in the 90s. Guido Van Rossum was wanting to make a change in the way computer programming was at the time, Naming the Program after Monty Python, a comedy group that performed in the late 1960s and early 70s. Today, Python is a very widely known computer programming language that shares similarities with some of the more earlier models of computer programs, Python was designed to be easy to understand and can
Python is one of the most commonly used programming languages in the field. According to Van Rossum this is because “Python is remarkably free from many of the hang-ups of conventional programming languages. This is perhaps due to my choice of examples: besides ABC, my main influence was Modula-3.” When compared to C or any other language, Python is much easier to use because it is so free of hang ups and the coding is so much shorter than any other language allows. Python uses indentation or “white space” in its code instead of using a bracket or brace like C++. For example a normal indentation show the beginning of a new block of code or a bigger white space shows that it is the end of a block of code. You can also reuse code and it has better readability than the other languages. Python has led Guido van Rossum to many new opportunities in his life and career. (1996) “Today, I can safely say that Python has changed my life. I have moved to a different continent. I spend my working days developing large systems in Python, when I'm not hacking on Python or answering Python-related email. There are Python T-shirts, workshops, mailing lists, a newsgroup, and now a book.”(Rossum) He has submitted a proposal to DARPA, worked for Google and Drop Box, and work with several labs that helped further develop Python and its non-profit organization for this open sourced language.(2013, Resume)
Programming is more fun and astonishingly useful as it build your creativity and creates new career doors for those passionate about it. Most people today don’t really know how a computer works even thou they can simply turn on a computer or a mobile phone by just clicking on some buttons or swiping a finger or two and the computer does what they want. Learning how to write computer programs will require one to understand how a computer works.
Java Script allows you to respond to a user's input in the form of text, buttons selected, or mouse clicks, and can generate a response to the user's computer. Java Script originated from within the labs of Netscape Communications Corporation in 1994. It was invented so a computing language could build web pages and applications more effectively. When it first appeared it was thought that it was a new form of C, but later turned out to be this wonderful new language called JavaScript.
Syntax is the study of how words are combined to create phrases and causes in the sentences of a specific language (Freeman and Freeman, 2014). Syntax helps us to make clear sentences that “sound right,” where words, phrases, and clauses each serve their function and are correctly ordered to form and communicate a complete sentence with meaning. The rules of syntax combine words into phrases and phrases into sentences. Not only does it focus on the correct word order for a language, but it also helps show the relationship between the meaning of a group of words. Without proper syntax, a sentence can be meaningless. It is key to understand that while every language does have certain syntax, the syntax does vary from language to language. It
The first programmable computers required the programmers to write explicit instructions to manipulate directly the hardware of the computer. This “machine language” was very tedious to write by hand since even simple tasks such as printing some output on the screen require 10 or 20 machine language commands. Machine language is often referred to as a “low-level language” since the code directly manipulates the hardware of the computer.
Software engineering was suggested at a NATO conference in 1968 to talk about the software crisis. “Software crisis” was the name give to problems encountered in the development of large and complex systems . In the early 1970s, notions of structured programming started coming up. In the late 1970s, early