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Forum: Programming / Scripting

Request help with C/C++, Perl, PHP, Python, Ruby, Bash Scripts, or other Linux programming/scripting related issues

  1. calling conventions in gcc.

    So gcc offers: __attribute__((stdcall)) __attribute__((cdecl)) __attribute__((fastcall)) but you're supposed to also handle not only the...

    Started by dfatlf, 10-02-2011
    • Replies: 0
    • Views: 680
    10-02-2011 Go to last post
  2. Java / Linux device driver access

    Hello, I'd like to access my Linux device driver using MMAP. This is no problem in C, but in Java I'm a little lost. From what I can tell the...

    Started by amess, 10-01-2011
    • Replies: 0
    • Views: 666
    10-01-2011 Go to last post
  3. How do you do __asm rol var,1 in GCC?

    register unsigned var=1234; register unsigned dwords=5; while (dwords--) { var+=5; __asm rol var,1 } I see gcc supports inline assembly,...

    Started by dfatlf, 10-01-2011
    • Replies: 2
    • Views: 1,102
    10-01-2011 Go to last post
  4. script deletes empy lines

    Hello. Im want to write a script which empty lines for text. I want to as where i made a mistake. #!/bin/bash echo Enter file name read x a=$(sed...

    Started by trintukaz, 10-01-2011
    • Replies: 1
    • Views: 400
    10-01-2011 Go to last post
  5. simple script to run external program

    I use a simple script to time an exercise routine: sleep 5m ; warm up 5 minutes beep sleep 5m ; exercise 5 minutes beep beep and so on.

    Started by jebradl, 09-30-2011
    • Replies: 2
    • Views: 695
    09-30-2011 Go to last post
  6. Cool Common practice of preventing duplicate process?

    I have a system could allow only one application running at any time. But without implementing any system wide protection or stamp. Application know...

    Started by legendbb, 09-23-2011
    • Replies: 6
    • Views: 2,339
    09-30-2011 Go to last post
  7. Need to prepend Zero's to a Count Variable

    Hi Experts , We recently migrated from Unix to GNU Linux . We were using the command typeset -Z3 for incrementing counter values like (...

    Started by harishraghunathan, 09-29-2011
    • Replies: 3
    • Views: 874
    09-30-2011 Go to last post
  8. Linking with COFF library?

    Hi, So I read ld can link with ELF or COFF libraries. But now how do I tell GCC via the header file that the names have leading underscores? ...

    Started by dfatlf, 09-29-2011
    • Replies: 1
    • Views: 1,098
    09-29-2011 Go to last post
  9. Question Code works on one linux system, fails on another, any suggests?

    I've built server using It runs fine on my development system, which runs Debian 6.0.2 64-bit. However, when I install it on my...

    Started by forexcoder, 09-28-2011
    • Replies: 2
    • Views: 600
    09-29-2011 Go to last post
  10. Cron syslog issue

    I have written a custom cron. This cron executes a rake task every 5 minutes. I also log the trace of this execution in a file locally on my server....

    Started by manjunath_nm89, 09-29-2011
    • Replies: 1
    • Views: 444
    09-29-2011 Go to last post
  11. Question Problem: measuring performance overhead for ptrace

    Hi everyone, I try to measure the runtime of my program one time under control of ptrace and one time without. The problem is that is seems like...

    Started by JOJBerlin, 09-29-2011
    • Replies: 0
    • Views: 790
    09-29-2011 Go to last post
  12. errors when trying to run file checks (bash)

    i'm trying to check if both files exist and if they do i will run a code block to be developed later; otherwise skip. The files im checking need a...

    Started by techstress, 09-26-2011
    • Replies: 2
    • Views: 1,810
    09-28-2011 Go to last post
  13. Catch the output when a C program executes a script

    Hi! I am writing a server program (using C) that executes a script when the client asks for it, but I am not sure about how to see the output of that...

    Started by occam25, 09-27-2011
    • Replies: 3
    • Views: 896
    09-28-2011 Go to last post
  14. Does linux have a nothrownew.obj equivalent?

    Hello, under windows you can link with nothrownew.obj to have new return null instead of throw an execption. Works for the lib as well since...

    Started by dfatlf, 09-26-2011
    • Replies: 4
    • Views: 760
    09-27-2011 Go to last post
  15. automatic authentification script

    hi guys, i've been trying to connect to my gmail account with lynx with auth option where i put my login and pass but it didn't work. I searched the...

    Started by newbie0101, 09-27-2011
    • Replies: 0
    • Views: 352
    09-27-2011 Go to last post
  16. AWK : Need help to print last bunch of patterns

    Hello I need to write a script to parse a string and get 4 tokens from the strings and the remaining tokens as single token. I will explain...

    Started by salilgk, 09-22-2011
    • Replies: 7
    • Views: 1,085
    09-26-2011 Go to last post
  17. ssh+commands in shell script

    Hi, I'm trying to write a script that ssh's to another server and does some commands. I have problems with this: LIST=īls -l /DIR | grep -v...

    Started by lecont, 09-14-2011
    • Replies: 5
    • Views: 1,762
    09-26-2011 Go to last post
  18. shell script

    Hi guys, can someone help me convert this dos script to sl?? echo off cls :start echo. ECHO Manutencao de BD ECHO - - - - - - - - - -

    Started by razstec, 09-22-2011
    • Replies: 9
    • Views: 1,680
    09-26-2011 Go to last post
  19. How to calculate how many times a piece of code runs ?????

    Hi all: I have a function in kernel module and I want to see how many times it is called and runs per second. I add a counter in the function so...

    Started by neyshule, 09-25-2011
    • Replies: 1
    • Views: 703
    09-26-2011 Go to last post
  20. Cool Is abort() enough to handle SIGTERM, SIGINT, SIGSEGV?

    Need to kill child process, if parent dies on SIGTERM, SIGINT or SIGSEGV. Read MAN, default action to these signals are abnormal termination. ...

    Started by legendbb, 09-23-2011
    • Replies: 3
    • Views: 1,468
    09-25-2011 Go to last post

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