I'm writing a program to be run from the Linux user space which spawns another process. How can it determine which files were modified by the spawned process after it completes?
Hi
I am working with telecom company.I am familiar with java programming language.But now I have a task to write a script , with linux operating systems.I have to write a script for fetching data from other computer and check some conditions. How can I do that using Java. Plz help me.
Thanks.
I have program that runs fast enough. I want to see the number of threads created by the program.
ldd test
shows use of library pthread. but how to find out number of threads created by the program. I only have command line access to the PC on which the program is run.
The platform is linux.
What are the best practices on writing a cross platform library in C++?
My development environment is Eclipse CDT on Linux, but my library should have the possibility to compile natively on Windows either (from Visual C++ for example).
The term has several definition according to Wikipedia, however what I'm really interested in is creating a program that has all its needed dependencies included within the source folder, so the end user doesn't need to install additional libraries for the app to install. For example, how Mac apps has all its dependencies all within the program itself already...
or is there a function that autotools does this? I'm programming in the Linux environment...
I see that if we change the HOME(linux) or USERPROFILE(windows) environmental variable and run a python script, it returns the new value as the user home when I tried,
os.environ['HOME']
os.exp
Is there any way to find the real user home directory without relying on the environmental variable?. Thanx.
If the java program is compiled as
javac t1.java a //error contents redirecedt to a,file a.But a doesnt have the error contents
The contents of t1.java is as:
class t1{
public static void main(String[] args) {
System.out.printn("Hello World!"); // Display the string.
}
}
So now there is a error i.e, println is written as print n ,how to capture this error in file a
The command is executed fromlinux command prompt
Thanks....
Are there any working packages to change a linux user passwords using PHP?
I've tried using PECL:PAM but theres an error when it tries to change the password.
in windows (using apache as server), my file path directory will be C:\xampp\htdocs\mysvn\PhpDocumentor\phpdoc.php. But what happen with other OS such as linux on APACHE, or IIS on windows, Or other OS i don't know and never use ?
i would like to know to make sure i wrote the bullet proof, file reading via PHP.
Hello,
I'm using a linux server that display directories in a bold font, and files in a normal font.
e.g. $ ls produces
afile.txt afolder anotherfile.txt anotherfolder
I'd like to use this feature on some other servers. How can it be done? with the .bash_profile?
If anyone has other ideas on how to differentiate folders from file, they'd be good to know?
Hi,
I am using linux, gcc, c.
I have a make file.
I want to debug my module.
How can I do it?
I don't want to debug a single file, I want to debug the whole module.
Is there a way in python to programmatically determine the width of the console? I mean the number of characters that fits in one line without wrapping, not the pixel width of the window.
Edit
Looking for a solution that works on Linux
I'm implementing an FTP-like protocol in Linux kernel 2.4 (homework), and I was under the impression that if a file is open for writing any subsequent attempt to open it by another thread should fail, until I actually tried it and discovered it goes through.
How do I prevent this from happening?
PS: I'm using open() to open the file.
I'm looking for a good multi-thread-aware debugger, capable of showing performance charts of application threads on Linux, don't know if such a thing exists, perhaps as a Eclipse plugin.
The idea would be to track per thread memory allocation a CPU usage as well as being able to interrupt a thread and examine its stack trace, local vars, etc.
It does not have to be an eclipse plugin or a free tool, do any of you have heard of something similar?
How do I get the number of packages transmitted per TCP connection?
I am using Java, but i know I will have to fetch the number from the underlying OS, so this quastion applies to Linux and Windows operating systems and will have different answers for each of them, I assume.
I need this information to profile the network load of an application which seems to send too many small packages by flushing the socket streams too often.
I find myself doing this a lot:
script/generate migration my_new_migration
.. then select & copy the generated filename, then paste it into vi to actually write the migration.
Is there any way to do this in one step? i.e. when the script/generate migration runs, it creates the file the automatically opens that file in an editor?
(I'm working in an SSH terminal window on linux..)
I'm coming to C++ from a .Net background. Knowing how to use the Standard C++ Libraries, and all the syntax, I've never ventured further. Now I'm looking learning a bit more, such as what libraries are commonly used? I want to start getting into Threading but have no idea to start. Is there a library (similar to how .net has System.Threading) out there that will make it a bit easier? I'm specifically looking to do Linux based network programming.
There's plenty of websites for it, but they're all Flash, not of much use for servers without graphics mode. Any tool I can use to test up/down bandwidth fromLinux command line?
I noticed that in Linux kernel 2.4 setscheduler doesn't force need_resched. Why is that? is it just some convention, or does that happens somewhere else?
I have a client server situation in which I receive data using
read(socket, char_buf, BUF_SIZE)
and then try to write it into a log file using
write(filefd, char_buf, strlen(char_buf))
Strangely enough this fails (write returns -1), and yet the errno is set to 0, and I can print the message, AND the log file descriptor works (I write to it before and after this command).
What's going on??
(Working on Linux kernel 2.4 (homework))
I'm converting some code written for a linux system to a windows system. I'm using C++ for my windows system and wanted to know the equivalent of the function inet_aton.
I generally have ignored using macros while writing in C but I think I know fundamentals about them. While i was reading the source code of list in linux kernel, i saw something like that:
#define LIST_HEAD_INIT(name) { &(name), &(name) }
#define LIST_HEAD(name) \
struct list_head name = LIST_HEAD_INIT(name)
(You can access the remaining part of the code from here.)
I didn't understand the function of ampersands(I don't think they are the address of operands here) in LIST_HEAD_INIT and so the use of LIST_HEAD_INIT in the code. I'd appreciate if someone can enlighten me.
I'm curious how far others have pushed Boost.Asio in terms of scalability. I am writing an application that may use close to 1000 socket objects, a handful of acceptor objects, and many thousand timer objects. I've configured it such that there's a thread pool invoking io_service::run and use strands in the appropriate places to ensure my handlers do not stomp on each other.
My platform is Red Hat Enterprise Linux with Boost 1.39, though I'm not opposed to upgrading to a more recent version of boost.
I'm messing around with Linux kernel 2.4 and function schedule() in sched.c uses the macro prepare_arch_schedule, which appears to be an infinite loop. What is that? And how does it finish?