Hey all, I'm writing a cross-platform application which is not GNU GPL compatible. The major problem I'm currently facing is that the application is linked dynamically with glibc and libstdc++, and almost every new major update to the libraries are not backwards compatible. Hence, random crashes are seen in my application. As a workaro...
Hello, I am writing an application that requires root user privileges to execute. If executed by a non root user, it exits and terminates with a perror message such as: pthread_getschedparam: Operation not permitted I would like to make the application more user friendly. As part of its early initialization I would like it to che...
I would like to learn objective-c, but don't have a Mac. How would I compile obj-c on Windows or Linux? I would prefer Windows, but Linux would be OK. ...
I have some scripts where I need to see the output and log the result to a file, with the simplest example being: $ update-client > my.log I want to be able to see the output of the command while it's running, but also have it logged to the file. I also log stderr, so I would want to be able to log the error stream while seeing it as ...
I have a PHP command line script which kicks off a job to a job server, with the job name being an argument. The job names are namespaced, such as Foo:Bar_Baz_JobName. Is there a way I could implement auto-completion, like how typing the first few letters of a filename and pressing tab bash completes the file name for you. I know it can ...
I have (cua-mode t) in my .emacs, so that C-c is copy and C-v is paste just like most other programs on my desktop (Ubuntu, Gnome, Linux). However, Emacs does not seem to share the clipboard/copy buffer with other programs. For example, if I C-c in Firefox I can S-C-v to paste into a terminal or C-v to paste into gedit. However, if I C-...
I want to determine if a network card is enabled, up, and plugged in. Basically, I want to know if the network card will work. I need this information from with a C++ program, and would like to display an error message when the network isn't working properly. If possible I would like to avoid using shell commands to determine this inform...
I have the following Ruby script that creates a Debian package, which works fine: #!/usr/bin/ruby dest = "#{File.dirname(__FILE__)}/../build" package = "foo" [ "cd #{dest} &" part of each command? ...
My app needs to do some privileged work. I've been looking everywhere, but I can't find anything useful. I know I want to use Policykit1 and dbus because all the other alternatives I've found aren't used anymore. This is the code I got so far: import dbus import os bus = dbus.SystemBus() proxy = bus.get_object('org.freedesktop.PolicyK...
I'm trying to determine which header declares a specific function. I've used grep to find instances of the function's use; now, I want to find which header is included by all the files. I'm aware of the comm utility; however, it can only compare two sorted files. Is there a Unix utility that can find the common lines between an arbitrary...
I have been trying to port few linux drivers and realized that there is substantial difference between kernel version 2.4 and 2.6 of linux. In the 2.4 version of kernel, the module programming was as below - #define MODULE #include <linux/module.h> #include <linux/kernel.h> int init_module(void) { printk(KERN_INFO "Hi \n"); re...
I want to store event time. I found these two functions, but don't know which one is faster. ...
I want to terminate a process group by sending SIGTERM to processes within it. This can be accomplished via the kill command, but the manuals I found provide few details about how exactly it works: int kill(pid_t pid, int sig); ... If pid is less than -1, then sig is sent to every process in the process group whose ID is ...
I'm using linphonec (without gtk interface, only command line) in Linux and I want to access incoming and outgoing sound samples, but I don't know what file should I edit to access them. Can anybody give me a clue, please? ...
I have a set of C files that I would like to use. Can I just copy them to my include directory, or do I have to compile them. I would think they would be compiled in the final binary. ...
Hii suppose i am exeuting some code on linux machine in between the code one code part comes and after executing i am not able to run other part that is meant for linux i m using staff service ... sorry this question might be stupid but i don't the problem i m facing any suggestion u want to give.... ...
Hello! I need to run inkscape in PHP so I can convert an svg image to PDF. However every time I try: //some PHP code system("inkscape -z --file=svg.svg --export-pdf=pdf.pdf"); //more code I get no new file and I get this in the apache erro log. (inkscape:28607): libgnomevfs-WARNING **: Unable to create ~/.gnome2 directory: ...
As I understand it, files like /dev/urandom provide just a constant stream of bits. The terminal emulator then tries to interpret them as strings, which results in a mess of unrecognised characters. How would I go about doing the same thing in python, send a string of ones and zeros to the terminal as "raw bits"? edit I may have to cl...
I'm new to using Perl to call the linux command line and have looked through a number of tutorials but still can't figure out what I am doing wrong.. I am trying the code below (in a .pl perl file, as an executable): #!/usr/bin/perl perl -e 'print "Hello";' I run this script and get: "Execution of /home/user1/Desktop/file_backups.pl...
The current time must be stored globally in order for gettimeofday to work, however I am not sure if the function modifies any global state so that concurrent execution is undefined. ...