Linux is a popular, open source operating system kernel. Linus Torvalds started development of the kernel in 1991.

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5
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2answers
613 views

Is bash “finished”? [closed]

Should bash be expected to change in ways that break non-trivial amounts of existing scripts at some point in the (near/<5y) future? How much change has it gone trough in the last ten years ...
3
votes
2answers
4k views

Where to find the source code for the Linux command line functions [closed]

I would like to study the source code of the standard command line functions in Linux such as ls, echo, cat, etc. But I have been unable to find the source code (a Google search was useless). Does ...
9
votes
3answers
5k views

Lowercase in Linux file names

As I find that UpperCase are really readable for first letter word separation in long complex names, I tend to give some of my Linux files names with some UpperCase. Mostly executables, some ...
124
votes
10answers
34k views

Is Ken Thompson's compiler hack still a threat?

Ken Thompson Hack (1984) Ken Thompson outlined a method for corrupting a compiler binary (and other compiled software, like a login script on a *nix system) in 1984. I was curious to know if modern ...
1
vote
1answer
80 views

Need some input on storing stdin, stdout, stderr information for debugging

I am working with a legacy system that is not too bad, but I thought of making some improvements to it, and I wanted to solicit your feedback to help me make good decisions. The platform is Linix (...
5
votes
5answers
2k views

Is it necessary to learn Makefiles when you have an IDE? [closed]

I have recently began studying Makefiles in Linux. I have ample experience developing applications with advanced IDEs, such as Visual Studio. My first impression and query after reading a few ...
7
votes
2answers
14k views

Low Latency Unix/Linux

Most low latency/high frequency programming jobs (based on job specs) appear to be implemented on unix platforms. In a lot of the specs they make particular request for people with "low latency linux" ...
3
votes
1answer
2k views

C++ on Windows vs Linux - common issues? [closed]

So far all my development in C++ has been targeted to Windows, however I have always had it in the back of my mind that I will someday be targeting Linux. I am aware therefore of the need to select ...
20
votes
6answers
8k views

Git-friendly spreadsheet format? [closed]

We're trying to move our project documentation process from Google Documents to a set of self-hosted Git repositories. Text documents are Git-friendly enough, since we usually do not need any fancy ...
4
votes
2answers
429 views

What is the lifecycle for loading a Linux Desktop Environment?

I'm looking into delving into a bit of custom OS work (and yes I understand that doing any development at the DE level or lower on an OS is extremely complex and not a light thing to undertake, ...
4
votes
1answer
258 views

unseen/unknown function definition in linux source

Can any one please explain this piece of code I found in the linux kernel source. I see a lots of code like this in linux and minix kernel but dont seem to find what it does (even if C compilers ...
0
votes
3answers
641 views

Which language is more suitable heavy file tasks?

I need to write a script (based on basic functions) to process /image/audio/video files. The process is mainly filesystem tasks and converts. The database of files has been stored by mysql. The script ...
3
votes
1answer
167 views

Is this possible to re-duplicate the hardware signal on Linux?

Since that every things is a file on the UNIX system. If I have a hardware, for example, a mouse, move from left corner to right corner, it should produce some kinds of file to communicate with the ...
8
votes
9answers
2k views

What is the way to understand someone else's giant uncommented spaghetti code? [duplicate]

Possible Duplicate: I’ve inherited 200K lines of spaghetti code — what now? I have been recently handled a giant multithreaded program with no comments and have been asked to understand what ...
0
votes
1answer
221 views

How to develop a menu for Linux apps [closed]

I want to create a python panel for Linux like pypanel or tint2 just for fun and to do practice with python development. Now the problem is: I want to create an auto-generated menu, but I don't know ...
5
votes
1answer
492 views

How is the Linux repository administrated?

I am amazed by the Linux project and I would like to learn how they administrate the code, given the huge number of developers. I found the Linux repository on GitHub, but I do not understand how it ...
2
votes
1answer
432 views

Can Win32 message loops survive being ported to native linux?

I would like to port a large Win32 DLL to native linux in C++. I don't think I can use Wine for a DLL like mine, because users of the DLL would then also have to be in Wine, and then they would all ...
2
votes
1answer
242 views

Setting source IP with posix sockets

Is it possible for an application to request a socket (tcp) and have it set the source address without using raw sockets? (the addresses would be bound to the interfaces. [no spoofing]). This would be ...
1
vote
3answers
5k views

Difference between Windows and Linux development environments? [closed]

I have an interview coming up soon for a Business Analyst position and the recruiter mentioned some feedback from a prior candidate that was interviewed who said the interviewers asked him what the ...
4
votes
3answers
706 views

What are the options for setting up a UNIX environment to learn C using Kernighan and Richie's The C Programming Language?

I'm a novice programmer and have been experimenting with Javascript, jQuery and PHP but felt I wasn't getting a real depth of understanding of what I was doing. So, after reading Joel Spolsky's ...
2
votes
6answers
3k views

Is it possible to keep only one Database for both web and desktop applications?

I'm experiencing a trouble with my business model, let me explain better. I'm developing a software for 1 year and few months, it's for the food industry, more exactly a software to: Delivery, Take ...
6
votes
5answers
11k views

Is there a way to publish IOS app from windows/Linux?

I have been using Linux (especially, Ubuntu) and Windows 7 for a long time. I want to publish iOS apps, but I don't have a Mac or an iPhone. I don't have anyone near me who will lend me a Mac, and I ...
-1
votes
1answer
2k views

Belkin device runs Linux, how can I create my own custom firmware for it? [closed]

The Belkin N300 F9K1002 firmware is located here. It does not appear to be encrypted. How can I upload my own custom Linux firmware to this device. How would I go about hacking it?
9
votes
3answers
6k views

What is the relationship between OpenGL, GLX, DRI, and Mesa3D?

I am starting out doing some low-level 3D programming in Linux. I have a lot of experience using the higher level graphics API OpenInventor. I know it is not strictly necessary to be aware of how ...
2
votes
2answers
1k views

Shared FIFO file descriptor

is ok to open fifo with one FD and share it with multiple threads? or is it better to have multiple fds opened for the same fifo and share these fds with the threads? BTW, I'll be doing write and read....
2
votes
2answers
958 views

Issues with time slicing

I was trying to see the effect of time slicing, and how it can consume significant amount of time. Actually, I was trying to divide a certain task into a number of threads and see the effect. I ...
5
votes
2answers
827 views

Linux OpenGL programming, should I use GLX or any other?

I'm new to OpenGL and found that there are a lot of libraries to do that in C, and I also found that glx is most friendly with Linux X Server, I just want to do basic stuff, and I cannot find any ...
2
votes
2answers
2k views

What are the advantages of programming to under an OS as opposed to bare metal executive?

Assume you are presented with an embedded system application to program, in C, on a multi-core environment (think a Cavium or Tilera) and need to choose between two environments: Code the application ...
2
votes
2answers
632 views

Work flow when editing files in /var/www. Constantly needing to input “sudo” commands

I installed Apache2 and PHP5 last night on my fresh Linux Mint machine. I created a folder and created a simple index.php file with a call to phpinfo() to test out the installation and every works ...
4
votes
3answers
1k views

Why rpm and deb package formats are not unified into one standard system?

I had this question asked on stackoverflow, but it was closed "as not a real question". So i decided to remove all rumbling and post that question here, assuming that this stackexchange is for "...
1
vote
1answer
157 views

Side-by-side Configuration on Linux/ELF

One of the best/worst Microsoft software innovations (great for compatibility; terrible for efficiency) has been Windows' Side by Side Configuration. This allows, among other things, for different ...
0
votes
1answer
342 views

What are some feasible ideas for building a smart-device/console development portfolio? [closed]

I would like to start getting more contracts in the mobile, smart-device, and console development space and, having little prior work experience in the field, I need to build a portfolio of example ...
1
vote
1answer
268 views

hash with file instead of array

Is it possible to use hash function but with File instead of Array, and it's gonna be saving the record in a file position and then search will fseek to that position, but I'm not sure how to open a ...
3
votes
2answers
1k views

Where Should I Put Configuration Files?

I'm creating a project that I want to be able to distribute across platforms. I'm writing in Java and AWT which already gives me a pretty large range of devices, but I'm mostly interested in Windows ...
1
vote
1answer
949 views

Multiple readers on FIFO

I've asked a question here before about multiple writers on a FIFO, and I know now that the write is thread safe as long as I write less than the PIPE_BIF, here is the link for that limit. What about ...
7
votes
1answer
1k views

“Read” a file without using a file pointer

I was asked this question in an interview. I'm somehow supposed to "read" a file into my C program as input without using a file pointer (including "f" functions, e.g. fgets, fscanf etc.). I'm also ...
9
votes
3answers
1k views

Lock-free IPC in Linux for multi-core processors

I'm trying to find a way to write an application with lock-free IPC on Linux, in C, with multi-core processors. Let's assume I have process 1 and process 2 that write to a FIFO or shared memory. Then ...
2
votes
2answers
630 views

Multi cores/CPUs with locks

I'm not sure how the locks will work with multi processors/cores, I'm going to use shared memory in my application or FIFO, what worries me is the locks, I have a server with 2-CPU, how the lock will ...
30
votes
10answers
6k views

Is it worth moving from Microsoft tech to Linux, NodeJS & other open source frameworks to save money for a start-up? [closed]

I am currently getting involved in a startup, I am the only developer involved at the moment, and the other guys are leaving all the tech decisions up to me at the moment. For my day job I work at a ...
1
vote
2answers
1k views

How do you accept arguments in the main.cpp file and reference another file?

I have a basic understanding of programming and I currently learning C++. I'm in the beginning phases of building my own CLI program for ubuntu. However, I have hit a few snags and I was wondering if ...
2
votes
2answers
677 views

IPC linux huge transaction

I'm building and application that requires huge transactions/sec of data and I need to use IPC to for the mutithreaded mutliprocceses communication, I know that there are a lot of methods to be used ...
2
votes
2answers
3k views

memory and time intensive php task

Sorry if this question has been asked before, but I couldn't find anything usable. I'm working on a project for a client and currently I have to loop through the users table which is about 3000 ...
2
votes
2answers
2k views

How to make custom libraries accessible? [closed]

I am trying to compile and install every custom module under it's own designated folder. (ex: /myApps/myLinux/compiled_app) I had luck with Python so far, where my Python is compiled from source and ...
3
votes
1answer
668 views

How to unit test with lots of IO

I write Linux embedded software which closely integrates with hardware. My modules are such as : -CMOS video input with kernel driver (v4l2) -Hardware h264/mpeg4 encoders (texas instuments) -Audio ...
4
votes
3answers
4k views

Reasons for either 32-bit or 64-bit as development machine

I'm about to make a new Linux install, which will be primarily used for programming. I've seen benchmarks showing speed improvement of 64-bit version, however, I have hard time of telling how much ...
1
vote
2answers
196 views

In need of a divide and conquer approach for re-writing small open-source utilities [duplicate]

Preamble (Skip if you don't like to read) I've been learning C/C++ in school for a year now and all the assignments in the book, after reading through the chapters, were not too difficult to ...
2
votes
7answers
4k views

Automatically delete files after they expire

I've got this idea for some time and I was wondering if anyone has seen such a feature/app in any operating system and if you haven't, what do you think about it. Where do you think I should begin? ...
2
votes
2answers
2k views

Creating a websocket server on Linux

I want to create a websocket server and I've found a great article here. However C# will output an exe file. I'd like to have it run on a linux box. What I want to do is to connect to the server, and ...
2
votes
3answers
1k views

How do programs like subversion detect when a file has been edited as opposed to created/deleted?

This is my first question here so I hope it is not off topic. Although I am using the Linux inotify library to listen for changes to files, and I compare use of that against the Subversion program, I ...
0
votes
2answers
191 views

is it possible for the author to trademark the name of an open-source application? [closed]

I would like to know if the name of an open-source application can be trademarked by the original author and what it means when it comes to distributing it through major linux distros, that is, will ...