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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. reading columns from file

    Hey everyone, I'm brand new in programming with C. I need to read 3 columns from a file and do calculations on that. Here is the code which I...

    Started by humank, 08-23-2011
    • Replies: 0
    • Views: 873
    08-23-2011 Go to last post
  2. Problem with alarm() and connect()

    Hi, I have a problem with sockets: I have a list of services at some hosts and ports, then I have to connect to each of them until I get one that...

    Started by crimsonking, 08-23-2011
    • Replies: 0
    • Views: 613
    08-23-2011 Go to last post
  3. splitting string

    Hello, I need to split string into characters and put then in the right order into an array. how to do that?

    Started by bregtux, 08-22-2011
    • Replies: 3
    • Views: 751
    08-23-2011 Go to last post
  4. Question Command for total number of files (and size) across subdirectories?

    Hi all... I have a directory called dbrn. This directory contains an unknown number of subdirectories which in turn contain an unknown number of...

    Started by mbeun, 08-22-2011
    • Replies: 2
    • Views: 2,235
    08-23-2011 Go to last post
  5. Bash - Variable with spaces and quotes passed to function - help!

    I have a generic script that builds up the parameters to call rsync. I am trying to add an optional set of parameters and pass this into a function...

    Started by ak888, 08-17-2011
    • Replies: 2
    • Views: 2,223
    08-22-2011 Go to last post
  6. C++ problem

    I'm trying to write a program that calculates square roots. Unfortunately, I can't get it to work out. The method I am using is like this: ...

    Started by Catch_22, 08-12-2011
    • Replies: 4
    • Views: 877
    08-21-2011 Go to last post
  7. Sounds easy, but somehow....?

    This sounds like it should be easy, but I can't get it to work. I need to write a program that can average the absolute value of 5 numbers that...

    Started by Catch_22, 08-19-2011
    • Replies: 2
    • Views: 983
    08-20-2011 Go to last post
  8. Troubles when waiting child proccess termination with wait(NULL)

    (schematic image attached) Hi, I am programming in C. My code has two threads, one for reading keyboard inputs and the other one for handling a...

    Started by occam25, 08-20-2011
    • Replies: 0
    • Views: 869
    08-20-2011 Go to last post
  9. would anyone check this script if its right or wrong

    A)) write a shell script that will 1-prompt the user for a file name 2-check to see if the file exists 3-create the file if the file does not...

    Started by flyman, 08-19-2011
    • Replies: 5
    • Views: 1,088
    08-19-2011 Go to last post
  10. struggling and need some help

    hey hows everyone .... ok I'm having hard times solving this problem ... I got a file continue a list of last names, first names, and address ......

    Started by flyman, 08-18-2011
    • Replies: 5
    • Views: 780
    08-19-2011 Go to last post
  11. Why won't this while loop loop?

    Hi guys, Having real problem here, I don't understand why this won't loop? What am I doing wrong? #include <stdio.h> int main()

    Started by JonnyFrond, 08-17-2011
    • Replies: 6
    • Views: 808
    08-19-2011 Go to last post
  12. hrtimer callback function - restart timer

    Hello ! Right now I'm testing and learning kernel hrtimers functionality. I wrote this piece of module code: ... 15 static struct hrtimer...

    Started by chester45, 08-06-2010
    • Replies: 3
    • Views: 12,298
    08-19-2011 Go to last post
  13. Rsync slow even during Incremental

    Hi Everyone, I would like to share that our rsync has been slow lately. Even during inceremental backups, now I am still new to this but our...

    Started by Windward_IT, 08-15-2011
    • Replies: 1
    • Views: 976
    08-18-2011 Go to last post
  14. How to automaticley Send on key press? [Bash]

    Hi i am trying to make a script that will run a command on key press e.g if i am pressing "w" it would run a command but without me pressing the...

    Started by ryanteck, 08-18-2011
    • Replies: 0
    • Views: 1,125
    08-18-2011 Go to last post
  15. need help with this script please

    hey how r ya guys ... I was trying to solve this problem but im really sure that I didnt get to the right answer yet , I posted my attempt so if...

    Started by flyman, 08-17-2011
    • Replies: 2
    • Views: 741
    08-18-2011 Go to last post
  16. Shell script giving syntax error

    Hi, I am very new to shell scripting in Linux, i am trying to run the below script but i am getting a syntax error related to 'fi' can ...

    Started by asteriskbuddy, 08-17-2011
    • Replies: 3
    • Views: 1,052
    08-17-2011 Go to last post
  17. need a help to extract the content form text file and do some mathemat

    output.txt ------------------------------------------------------------ Client connecting to, TCP port 5001 TCP window size: 16.0...

    Started by jpjohnj, 08-16-2011
    • Replies: 2
    • Views: 1,026
    08-17-2011 Go to last post
  18. how to remove all files except few directories

    Hello I have directory which has many files and sub directories similar to what this command will do mkdir dir{1..100} && touch...

    Started by amlife, 08-16-2011
    • Replies: 1
    • Views: 779
    08-17-2011 Go to last post
  19. determining how full a named pipe is

    I believe that named pipes have a maximum size - as I recall the max size increased via some recent kernel release. Anyway - my application is I...

    Started by RoyHB, 08-14-2011
    • Replies: 2
    • Views: 1,736
    08-16-2011 Go to last post
  20. I need help writing a bash script

    I have to add to specific users - john28 and joe54 to the group wheel. I then have to go into /etc/sudoers and make sure that requiretty is commented...

    Started by pauhn, 08-13-2011
    • Replies: 8
    • Views: 2,052
    08-16-2011 Go to last post

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