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  • Why C++ is (one of) the best language to learn at first [closed]

    - by AlexV
    C++ is one of the most used programming language in the world since like 25+ years. My first job as programmer was in C++ and I coded in C++ everyday for nearly 4 years. Now I do mostly PHP, but I will forever cherish this C++ background. C++ has helped me understand many "under the hood" features/behaviors/restrictions of many other (and different) programming languages like PHP and Delphi. I'm a full time programmer for 6+ years now and since I have a quite varied programming background I often get questions by "newbies" as where to start to become a "good" programmer. I think C++ is one of the best language to start with because it gives you a real usefull experience that will last and will teach you how things work under the hood. It's not the easier one to learn for a newbie, but in my opinion it's the one who will reward the most in long term. I would like to know your opinion on this matter to add to my arguments when I guide "newbies". After this introduction, here's my question : Why C++ is for you (one of) the best language to learn at first. Since it's subjective, I've marked this question as community wiki.

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  • What is PHP like as a programming language?

    - by seanlinmt
    I am not really familiar with PHP, but I get the impression that it is like JavaScript (syntax-wise). What are the benefits of a dynamically typed language, when compared to a strongly typed language like C# or Java, and how would this help in the context of web development? What would make a dynamically typed language so attractive? Or, does the popularity of PHP have more to do with it being free? Okay, I think I better give a little more background to get more meaningful answers, because I am not wanting a flame war. I come from a C background, and when I moved into C# and Visual Studio. Having code completion, integration with an SQL database, huge existing class libraries and easy to access documentation, as well as new tools such as LINQ and ReSharper was like heaven. I didn't enjoy JavaScript before JQuery, but now I love it as well. Recently, I ported a PHP project over to C# and I used Zend to help me debug and understand more while porting - instead of maintaining two code streams. That also cut down on the cost of the server and maintenance. Getting into PHP would be nice. I think that Visual Studio has spoiled me - but again Eclipse is also equally spoiling. It would be nice to have an answer from someone who has experience developing both under PHP and .NET.

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  • Hidden features of Bash

    - by Patrick
    Shell scripts are often used as glue, for automation and simple one-off tasks. What are some of your favorite "hidden" features of the Bash shell/scripting language? One feature per answer Give an example and short description of the feature, not just a link to documentation Label the feature using bold title as the first line See also: Hidden features of C Hidden features of C# Hidden features of C++ Hidden features of Delphi Hidden features of Python Hidden features of Java Hidden features of JavaScript Hidden features of Ruby Hidden features of PHP Hidden features of Perl Hidden features of VB.Net

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  • embedding pascal

    - by Sam P
    Is anyone aware of a Pascal interpreter/compiler which is embeddable in C++ (or anything else other than Pascal) applications? I am cloning (for lack of a better word) an application which uses an Object-Pascal compatible scripting language and needs to be script compatible. Am I going to end up writing an interpreter? (!)

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  • What's the next big thing after LINQ?

    - by Leniel Macaferi
    I started using LINQ (Language Integrated Query) when it was still in beta, more specifically Microsoft .NET LINQ Preview (May 2006). Almost 4 years have passed and here we are using LINQ in a lot of projects for the most diverse tasks. I even wrote my final college project based on LINQ. You see how I like it. LINQ and more recently PLINQ (Parallel LINQ) give our jobs a great boost when it comes to more programming power and less lines of code leading us to more expressive and readable code. I keep thinking what could be the next big language improvement for C# after LINQ. I know there are some promissing language features coming as Code Contracts, etc, but nothing having the impact that LINQ had. What do you think could be the next big thing?

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  • SSH login with expect(1). How to exit expect and remain in SSH?

    - by Koroviev
    So I wanted to automate my SSH logins. The host I'm with doesn't allow key authentication on this server, so I had to be more inventive. I don't know much about shell scripting, but some research showed me the command 'expect' and some scripts using it for exactly this purpose. I set up a script and ran it, it worked perfectly to login. #!/usr/bin/env expect -f set password "my_password" match_max 1000 spawn ssh -p 2222 "my_username"@11.22.11.22 expect "*?assword:*" send -- "$password\r" send -- "\r" expect eof Initially, it runs as it should. Last login: Wed May 12 21:07:52 on ttys002 esther:~ user$ expect expect-test.exp spawn ssh -p 2222 [email protected] [email protected]'s password: Last login: Wed May 12 15:44:43 2010 from 20.10.20.10 -jailshell-3.2$ But that's where the success ends. Commands do not work, but hitting enter just makes a new line. Arrow keys and other non-alphanumeric keys produce symbols like '^[[C', '^[[A', '^[OQ' etc.[1] No other prompt appears except the two initially created by the expect script. Any ignored commands will be executed by my local shell once expect times out. An example: -jailshell-3.2$ whoami ls pwd hostname (...time passes, expect times out...) esther:~ user$ whoami user esther:~ ciaran$ ls Books Documents Movies Public Code Downloads Music Sites Desktop Library Pictures expect-test.exp esther:~ ciaran$ pwd /Users/ciaran esther:~ ciaran$ hostname esther.local As I said, I have no shell scripting experience, but I think it's being caused because I'm still "inside of" expect, but not "inside of" SSH. Is there any way to terminate expect once I've logged in, and have it hand over the SSH session to me? I've tried commands like 'close' and 'exit', after " send -- "\r" ". Yeah, they do what I want and expect dies, but it vindictively takes the SSH session down with it, leaving me back where I started. What I really need is for expect to do its job and terminate, leaving the SSH session back in my hands as if I did it manually. All help is appreciated, thanks. [1] I know there's a name for this, but I don't know what it is. And this is one of those frightening things which can't be googled, because the punctuation characters are ignored. As a side question, what's the story here?

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  • Windows Batch Script Question

    - by Scott
    So I need a Windows Script that I can tell it a directory to go through and it will parse all sub-directories and while in each subdir, will archive all files with a certain file extension and keep it in the same subdir, then move onto the next one. What's the best way to go about this? Perl Automation Scripting, AutoIt? Any sample code you guys can give me?

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  • What should every programmer know?

    - by Matt Lacey
    Regardless of programming language(s) or operating system(s) used or the environment they develop for, what should every programmer know? Some background: I'm interested in becoming the best programmer I can. As part of this process I'm trying to understand what I don't know and would benefit me a lot if I did. While there are loads of lists around along the lines of "n things every [insert programming language] developer should know", I have yet to find anything similar which isn't limited to a specific language. I also expect this information to be of interest and benefit to others.

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  • running python from an android app

    - by Stacia
    Hi everyone, I am trying to run a python script through an application I've written. I found some pages which say that this piece of code is doing it, but I can't figure it out. http://code.google.com/p/android-scripting/source/browse/android/AndroidScriptingEnvironment/src/com/google/ase/locale/LocaleReceiver.java Can someone explain what is going on and how I can edit that to run an arbitrary script file in my project directory?

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  • Stop execution of python script when parent Bash shell script is killed

    - by jrdioko
    I'm working on a Bash shell script that runs several Python scripts like so: cd ${SCRIPT_PATH} python -u ${SCRIPT_NAME} ${SCRIPT_ARGS} >> $JOBLOG 2>&1 At one point, I killed the shell script (using kill PID), but the Python script continued running, even after the script terminated. I thought these would die as soon as the main script died. What am I misunderstanding about Bash scripting, and what can I do to get the functionality I'm looking for? Thanks in advance!

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  • 3d engine with telnet access

    - by zaf
    Does anyone know of a open source 3d engine which can be operated via telnet? What I'm looking for is scripting via a socket connection. To allow for world creation and/or camera movement. Does anybody know of any that has this built in or very, very easy to add as a plugin or script? The platform is not crucial.

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  • Problems with noobs putting my GA code into their sites

    - by dclowd9901
    I don't mean for the title to be derogatory, but this is a rather frustrating problem, and I'm looking for a good workaround, given a language barrier involved. I have a site set up for a plugin I wrote, and, rather than use the site's resources to write their own code, I've had people simply rip the code from the samples on the site. Normally, this wouldn't be any issue at all, but they are also taking my Google Analytics instantiation, so my Analytics data is getting very skewed by incorporating visitation data from their websites. I've been able to contact the English-speaking site owners with little issue. The problem lies in the Japanese language sites that are yanking the code. I have no idea how to ask them to take down the analytics portion. Long-term, I'm providing a package that streamlines the learning-to-use process, but in the meantime, what can I do about this language barrier? Is there a way around this problem that I haven't thought of?

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  • Best Practice: User generated HTML cleaning

    - by Martin
    I'm coding a WYSIWYG editor width designMode="on" on a iframe. The editor works fine and i store the code as is in the database. Before outputing the html i need to "clean" with php on the server-side to avoid cross-site-scripting and other scary things. Is there some sort of best practice on how to do this? What tags can be dangerous? UPDATE: Typo fixed, it's What You See Is What You Get. Nothing new :)

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  • read the contents of a directory using shell script

    - by jrharshath
    Hi, I'm trying to get the contents of a directory using shell script. My script is: for entry in `ls`; do echo $entry done However, my current directory contains many files with whitespaces in their names. In that case, this script fails. What is the correct way to loop over the contents of a directory in shell scripting? PS: I use bash.

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  • Cut a file based on a text marker

    - by Mustafa
    I have a text file that has the following layout: text text .. CUT HERE text text .. The literal CUT HERE appears only once. What I want to do using shell scripting, is to produce another file containing all the text below CUT HERE, i.e. ignore whatever above CUT HERE. Thanks.

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  • What applications is Python optimal for?

    - by Alan
    I'm already a professional J2EE developer by day, and Rails developer by night. I'm planning on adding Python to my list of skills. I'm already convinced a language is just a tool, so I'm not interested in a religious war. I agree with the Pragmatic Programmers that learning one language/year is a good thing for your professional development So, in your considered opinion, what kinds of applications does Python hit the sweet spot? And why? What advantages does it have, and why do these advantages outweigh the costs in adopting Python? ADD: I also plan on learning a pure functional language like Scheme.

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  • Redirect output of shell script to a file

    - by Buzkie
    I'm trying to redirect the output of my script and it needs to be called inside the script. filename=uname -a filename="$filename" date 2>&1 | tee $filename".txt" That is what I have so far, but it's obviously wrong. I don't know too much SH scripting, so help is appreciated -Alex

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  • Is there a way to jail in Javascript, so that the DOM isn't visible

    - by TiansHUo
    I would really like to provide the user some scripting capabilities, while not giving it access to the more powerful features, like altering the DOM. That is, all input/output is tunneled thru a given interface. Like a kind of restricted javacsript. Example: If the interface is checkanswer(func) this are allowed: checkanswer( function (x,y)={ return x+y; } but these are not allowed: alert(1) document.write("hello world") eval("alert()")

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  • Where can I find a web-project "security checklist?"

    - by iaagty
    I'm looking for a complete list of security guidelines for programming and deploying PHP web sites and applications on an Apache (Linux) server. Basically, a "security check list" to run through before finishing a project. I.e., Cross Site Scripting Cross Site Request Forgery Sanitize form data that goes into database Disable register globals and error reporting in custom php.ini Upload files below web root ...(the list goes on) I did some searching on the internet and in this forum, but couldn't find a comprehensive, succinct, and complete list of guidelines. Thanks in advance.

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  • php error message "Notice: Undefined index: aid"

    - by iaagty
    I'm looking for a complete list of security guidelines for programming and deploying PHP web sites and applications on an Apache (Linux) server. Basically, a "security check list" to run through before finishing a project. I.e., Cross Site Scripting Cross Site Request Forgery Sanitize form data that goes into database Disable register globals and error reporting in custom php.ini Upload files below web root ...(the list goes on) I did some searching on the internet and in this forum, but couldn't find a comprehensive, succinct, and complete list of guidelines. Thanks in advance.

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  • New or not so well-known paradigms, syntax features and behaviours of programming languages?

    - by George B
    I've designed some educational programming languages and interpreters for them, but my problem always was that they ended up "normal" and "boring", mostly similar to some kind of existing language (ASM and BASIC). I find it really hard to come up with new ideas for syntax features, "neat things" and new or very modified programming paradigms for it. I always thought that it was hard to come up with good new things not fun/useless new things for this case. I wondered if you could help me out with your creativity: What features in terms of language syntax and built-in functions as well as maybe even new paradigms can I work into my language to keep it useless but more fun, enjoyable, interesting and/or different to program in?

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  • How can I create an automatic svn tagging script?

    - by Eran Betzalel
    I want to create a simple script that tags the latest revision to the tags folder, for example: for Trunk directory head revision 114, it will create a tag of this directory to the Tags directory which goes by the name "r114". I don't really care of what scripting language it'll use (as long as it runs on windows). I tried creating such script using SVN CLI tool, but it failed connecting to a SSL repository. How can I achieve that?

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