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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. replacing string in a file

    I want to replace the following string: mnt\I\F with: mnt\F\F I know to use something like: sed -i 's/I/F/g' filename but don't understand...

    Started by fusa, 08-23-2011
    • Replies: 2
    • Views: 388
    08-24-2011 Go to last post
  2. Question about redirecting.

    I am adding items to a text file (I'm using random names for the example below). Rather than opening the file in vi over and over again, I have been...

    Started by WyattOil, 08-22-2011
    • Replies: 4
    • Views: 474
    08-24-2011 Go to last post
  3. How to assign diff result to a variable in bash script

    Hi Guys, I'm writing a bash script and need to assign the result of diff to a variable. diff -u file1 file2 I've tried stuff like ...

    Started by fang, 08-22-2011
    • Replies: 2
    • Views: 1,226
    08-24-2011 Go to last post
  4. 3 files to 1

    Hi, i am totally noob in Linux. My problem is: i have 3 files with 2 colums in each. 1. column is a date, the second one consist a number. I...

    Started by kaposznyak, 08-23-2011
    • Replies: 1
    • Views: 335
    08-23-2011 Go to last post
  5. 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: 601
    08-23-2011 Go to last post
  6. 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: 372
    08-23-2011 Go to last post
  7. 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: 472
    08-23-2011 Go to last post
  8. 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: 1,830
    08-23-2011 Go to last post
  9. 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: 1,613
    08-22-2011 Go to last post
  10. 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: 579
    08-21-2011 Go to last post
  11. 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: 761
    08-20-2011 Go to last post
  12. 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: 691
    08-20-2011 Go to last post
  13. 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: 786
    08-19-2011 Go to last post
  14. 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: 445
    08-19-2011 Go to last post
  15. 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: 501
    08-19-2011 Go to last post
  16. 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: 6,387
    08-19-2011 Go to last post
  17. 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: 764
    08-18-2011 Go to last post
  18. 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: 903
    08-18-2011 Go to last post
  19. 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: 513
    08-18-2011 Go to last post
  20. 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: 773
    08-17-2011 Go to last post

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