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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. BASH: Extract text on each line between two specific expressions

    Hi, I have a large log file I need to extract data from. The output has already been filtered by grep to contain the lines I require. I now need a...

    Started by harveyd, 05-15-2013
    • Replies: 2
    • Views: 989
    05-15-2013 Go to last post
  2. Backup folder in shell script

    Hi, i have a shell script that runs a backup and restore, When i backup a file i would like the backup to be stored in a date stamped folder(shows...

    Started by shotties, 05-14-2013
    • Replies: 1
    • Views: 711
    05-14-2013 Go to last post
  3. Linux Library Use Explanation - libmodbus

    Im super new to linux and server administration in general. I am wanting to implement libmodbus to allow the server to listen to a port for a modbus...

    Started by peteykirk, 05-10-2013
    • Replies: 2
    • Views: 1,821
    05-14-2013 Go to last post
  4. Question how to set date & time from Windows PC connected to a Linux Server

    I have a windows PC connected to a Linux Server via the LAN port and am using SSH (Putty). I am using the pscp command to copy files to and from...

    Started by Quantumsys, 05-14-2013
    • Replies: 2
    • Views: 739
    05-14-2013 Go to last post
  5. Bash loop script problem.

    Hi, i am new to shell script and i am trying to make a menu that has three options: backup,restore and quit. if you were to type a letter or number...

    Started by shotties, 05-13-2013
    • Replies: 4
    • Views: 596
    05-13-2013 Go to last post
  6. Shell script backup problem.

    When i try to create a backup i am getting an error that says "tar: cowardly refusing to create an empty archive". If anyone can help i would be very...

    Started by shotties, 05-13-2013
    • Replies: 2
    • Views: 497
    05-13-2013 Go to last post
  7. redraw refresh screen Xlib after hiding

    I am trying to build some x11 programs an I think I will manage, but there is one question I can't figure out how to deal with it. Very strange I...

    Started by kuifje, 05-04-2013
    • Replies: 2
    • Views: 2,693
    05-13-2013 Go to last post
  8. Print line that contains highest value in column


    Started by sponge, 05-11-2013
    • Replies: 3
    • Views: 2,707
    05-12-2013 Go to last post
  9. Read from stdin - not keyboard - in Xlib // Motif

    I have build a little xlib/ motif program and try to read from stdin as was it a usual C-programm. I try to use fgets... But it seems not to get...

    Started by kuifje, 05-10-2013
    • Replies: 6
    • Views: 1,129
    05-11-2013 Go to last post
  10. Handling null values in shell script

    Hi all, I am facing a problem to declare variable which can handle null values. Here's the situation export PARM5="$5" export PARM6="$6"...

    Started by sandy0594, 05-04-2013
    • Replies: 6
    • Views: 5,375
    05-10-2013 Go to last post
  11. Cheking THRE to send a string via serial port

    I'm trying to send a string to a serial port using: #define UART 0x03f8 ... #define UART_LSR_THRE 0x20 ... void UART_send(unsigned char...

    Started by LastOrder, 05-08-2013
    • Replies: 1
    • Views: 530
    05-09-2013 Go to last post
  12. [SOLVED] How to run a command inside a command on a bash script?

    This is fairly simple. What I'm trying to achieve is have a folder created with the current unix timestamp. What I'm doing ATM is this: ...

    Started by Pyrobisqit, 05-08-2013
    • Replies: 5
    • Views: 1,299
    05-08-2013 Go to last post
  13. Unhappy BCP failing

    Dear All, we are in process of migrating our script from Solaris 8 to LINUX. We are converting the scripts to ksh. There is one script which uses...

    Started by brijeshkumar_77, 05-08-2013
    • Replies: 0
    • Views: 724
    05-08-2013 Go to last post
  14. Awk (III)

    Still trying to get familiar with awk. How does awk deal with elements in columns from different rows? Given: AA ZKYYG BB QRTBG CC TRFDG DD...

    Started by sponge, 05-08-2013
    • Replies: 1
    • Views: 566
    05-08-2013 Go to last post
  15. Another about awk

    Just ran into another question: having this data AA ZKYYG BB QRTBG CC TRFDG DD LHSDF How can I ask awk to print column 1 from all...

    Started by sponge, 05-04-2013
    • Replies: 4
    • Views: 844
    05-07-2013 Go to last post
  16. How to get ARGV to work in Perl

    Hello, I am using a new install of cygwin that has Perl and everything works fine, but not ARGV. If I try to print this: print "$ARGV"; I...

    Started by vendetta1, 05-06-2013
    • Replies: 3
    • Views: 1,612
    05-07-2013 Go to last post
  17. Strange thing debugging with GDB

    Hi, I am debugging a program with gdb and something that I don't understand is happening. After serveral hours working ok, the program gets stuck...

    Started by occam25, 05-04-2013
    • Replies: 3
    • Views: 861
    05-06-2013 Go to last post
  18. how to use flock between C program and shell script

    I have a shell script and a c program #!/bin/bash for i in `seq 1 10000` do (flock -x 200 //...

    Started by esolve, 05-06-2013
    • Replies: 0
    • Views: 938
    05-06-2013 Go to last post
  19. [SOLVED] Argument list too long

    I’m trying to use a while/do loop inside a bash script ( to read data from a tab-delimited text file (named “test”) into an array. As...

    Started by BadTypist, 05-04-2013
    • Replies: 4
    • Views: 2,837
    05-05-2013 Go to last post
  20. Bash: Trying to make an if statement

    Hello, I'm trying to make a script file that has an if statement that would be true if the line that is being read starts with the word "crush". Then...

    Started by vendetta1, 05-05-2013
    • Replies: 2
    • Views: 520
    05-05-2013 Go to last post

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