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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. 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: 2,513
    09-30-2011 Go to last post
  2. 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: 964
    09-30-2011 Go to last post
  3. 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: 1,159
    09-29-2011 Go to last post
  4. 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: 625
    09-29-2011 Go to last post
  5. 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: 465
    09-29-2011 Go to last post
  6. 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: 855
    09-29-2011 Go to last post
  7. 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, 09-27-2011
    • Replies: 2
    • Views: 2,149
    09-28-2011 Go to last post
  8. 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: 937
    09-28-2011 Go to last post
  9. 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: 820
    09-27-2011 Go to last post
  10. 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: 376
    09-27-2011 Go to last post
  11. 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: 1,120
    09-26-2011 Go to last post
  12. 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: 1,904
    09-26-2011 Go to last post
  13. 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: 1,746
    09-26-2011 Go to last post
  14. 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: 723
    09-26-2011 Go to last post
  15. 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: 1,533
    09-26-2011 Go to last post
  16. Question cat+grep+sed/cat+greg+cut output to variable

    Hey all, I'm wondering why the following returns what it does.. bash -x tells me: Using cut: test=`cat avvdat.ini | grep avvdat-*.zip |...

    Started by cmschube, 09-23-2011
    • Replies: 1
    • Views: 985
    09-25-2011 Go to last post
  17. Sed/Awk - quit after match found

    Hi all, I'm currently trying to analyse a rather large file that has returned data for numerous machines. Each record starts with "MachineTag="...

    Started by rthomas_uk, 09-23-2011
    • Replies: 2
    • Views: 2,585
    09-25-2011 Go to last post
  18. Can somebody write me a script

    Can somebody write me a bash script or maybe you have this script which shows files in catalog tree older than typed date.

    Started by trintukaz, 09-25-2011
    • Replies: 3
    • Views: 478
    09-25-2011 Go to last post
  19. Bash and databases

    hey! Im running Ubuntu server 10.04LTS and i want to access information stored on a database via my script.. The idea is i want to have...

    Started by dori922, 09-24-2011
    • Replies: 1
    • Views: 668
    09-25-2011 Go to last post
  20. Question commandline filebrowser for c program

    Hello everyone, is anyone know a file-browser (template, code, ...) witch I can implement into my c-program (command-line only) functions I need:...

    Started by JOJBerlin, 09-23-2011
    • Replies: 5
    • Views: 2,189
    09-24-2011 Go to last post

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