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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. C++ Newton Method

    Hello, I'm trying to solve f(x)=2-(x-1)(4-x)exp(-x)=1.8 where x is between 2.4 and 2.5. So I started by defining g(x)=0.2-(x-1)(4-x)exp(-x) and...

    Started by Catch_22, 02-01-2012
    • Replies: 2
    • Views: 1,775
    02-03-2012 Go to last post
  2. BASH - Add lines to file after text is found

    Basically, I just need to search a text file for a line, then add a couple lines, with user input, to the file. (Radius server user file) I've tried...

    Started by zerowizard, 01-31-2012
    • Replies: 6
    • Views: 7,431
    02-01-2012 Go to last post
  3. sed every nth line replace

    Hi to all, I've searched the forums and the web and come up with only close-but-no-cigar answers. I am trying to replace every kth line in my...

    Started by mellofellow, 02-01-2012
    • Replies: 2
    • Views: 4,574
    02-01-2012 Go to last post
  4. Question Terminal to gui messages

    Hey, I'm doing a little bit of programming with bash, and I came across a problem. I am trying to find a bash command that can send messages to the...

    Started by Vampire5, 01-25-2012
    • Replies: 6
    • Views: 3,019
    02-01-2012 Go to last post
  5. Script to perform Rsync and wipe

    Hello, Let me start by saying that I have very little experience with scripting. I am wondering if anybody here know of or could assist in the...

    Started by zippy4251, 01-27-2012
    • Replies: 7
    • Views: 3,022
    02-01-2012 Go to last post
  6. C langage variable problem

    i'm a newbie ,i don't know where problems The results

    Started by ibelieveme, 01-31-2012
    • Replies: 2
    • Views: 749
    01-31-2012 Go to last post
  7. Can't find Parameters of struct _modbus or modbus_t

    I have downloaded libmodbus3.0.1 from, in the headerfile modbus.h there is a line typedef struct _modbus modbus_t; but i cannot find...

    Started by karthikkm1987, 08-23-2011
    • Replies: 2
    • Views: 2,485
    01-30-2012 Go to last post
  8. sed:trying to replace everything before the pattern with an emp string

    So I'm trying to replace everything before the pattern and everything afterward. and print it out using sed for instance, i have a text file or...

    Started by fabreeze, 01-29-2012
    • Replies: 3
    • Views: 3,725
    01-29-2012 Go to last post
  9. Pipe text file contents into "find" command then xargs into cpio

    Hi folks, I've used "awk" to extract a list of filenames into a text file, which looks like this: A008_C004_07141K.R3D A009_C001_04233L.R3D...

    Started by patski, 01-29-2012
    • Replies: 2
    • Views: 2,329
    01-29-2012 Go to last post
  10. expect problem with set

    #!/usr/bin/expect -f set EXCLUDE "--exclude 'home/dave/fun'" spawn tar -czf /home/backup/dave.tgz -C / home/dave/ $EXCLUDE I will get this error...

    Started by delevel, 01-28-2012
    • Replies: 1
    • Views: 952
    01-29-2012 Go to last post
  11. find out if NO keys are being pressed

    Using system() or terminal I can set the input mode to raw instead of cooked with "stty raw -echo" which lets me know if a key was pressed using...

    Started by NotBash, 01-25-2012
    • Replies: 4
    • Views: 1,755
    01-29-2012 Go to last post
  12. trace of instructions of a C program

    HI Friends! I would like to know if there is a tool to know the trace of instructions of a program once it has finished. I know I can debug with...

    Started by jesusitoLinux, 01-18-2012
    • Replies: 5
    • Views: 1,804
    01-29-2012 Go to last post
  13. Question Looking for the proper automation solution.

    I have a problem. I'm looking for the best (not the easiest) solution. I'm sure this problem was worked out in the 80's, I just don't know how to...

    Started by todd_dsm, 01-26-2012
    • Replies: 5
    • Views: 1,297
    01-28-2012 Go to last post
  14. how to write on a device file using copy_from_user()

    Hi , I am new to linux and was making a module in which user can read as well as write to a device file.the following is my code where read is...

    Started by karan2386, 01-27-2012
    • Replies: 1
    • Views: 1,285
    01-28-2012 Go to last post
  15. check the difference between 2 arrays

    Hello Thanks everyone for the help earlier, what I would like to learn now is how can I achieve the following : array1 =...

    Started by amlife, 01-27-2012
    • Replies: 2
    • Views: 3,072
    01-28-2012 Go to last post
  16. Start Screen using PHP

    I want to do a script to start ts3 using screen in php. The command to start the server is "screen ./ts3server" in directory "/home/ts3". Now I want...

    Started by h3llkill3r, 01-20-2012
    • Replies: 1
    • Views: 1,970
    01-28-2012 Go to last post
  17. Perl help!

    Hello all I have a csv file filled with content like this 1111111|2222222|3333333 4444444|5555555|6666666 7777777|6666666|4444444 How can...

    Started by amlife, 01-27-2012
    • Replies: 2
    • Views: 904
    01-27-2012 Go to last post
  18. TCL regexp @ sign

    Hello all. I have a problem with a TCL / expect script in which I capture screen-output and need to react on a string which has an 'at' sign in...

    Started by DvdPluijm, 01-25-2012
    • Replies: 3
    • Views: 1,121
    01-27-2012 Go to last post
  19. sed not working

    Hi there, bi=8&kw=finanzen&ci=hamburg&ciid=8816& I need to replace & with & . sed -i s/"&"/"&"/ test2.txt The above command does...

    Started by nagileon, 01-26-2012
    • Replies: 1
    • Views: 812
    01-26-2012 Go to last post
  20. Question C++ linux and Windows ?? Major differences Thoughts ?? ideas ??

    Hi I have programmed a fair amount of C++ in Windows. However recently i have seen job requirements stating that C++ programming in a linux...

    Started by zedan85, 01-16-2012
    2 Pages
    1 2
    • Replies: 14
    • Views: 7,083
    01-25-2012 Go to last post

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