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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. Almost there: Problem expanding variable correctly in sed

    I have the following variable set in a script: TEST="Started at Mon Jan 30 00:10:38 MST 2017" I try to find the last instance of it in a file. I...

    Started by jdh239, 3 Weeks Ago
    • Replies: 7
    • Views: 195
    3 Weeks Ago Go to last post
  2. regex replace string

    Greetings i have a large file that i need to modify where the lines looks like: something-blue black "#WHITE/>" "AB/C/D/EF/>" "L/F/AB/BGM/>"...

    Started by bishop2001, 4 Weeks Ago
    • Replies: 3
    • Views: 342
    4 Weeks Ago Go to last post
  3. traffic sheduler, where it is called in the kernel?

    Hi, where in the linux networking code are network packets assigned a sheduler like pfifo? i guess it must be somewhere in this function:...

    Started by Havana_Cola, 01-21-2017
    • Replies: 5
    • Views: 321
    4 Weeks Ago Go to last post
  4. Question Using arrow keys in heredoc

    I have a build system that runs for about 5 minutes before requiring user input for exiting a curses-based config program. The user has to hit right...

    Started by doug4, 01-20-2017
    • Replies: 1
    • Views: 259
    01-20-2017 Go to last post
  5. [SOLVED] C-Shell script passing arguments problem

    I found something insteresting when I tested passing arguments into my scripts. My scripts is as below. % cat passarg.env #!/bin/csh echo...

    Started by bestard, 01-12-2017
    • Replies: 9
    • Views: 601
    01-16-2017 Go to last post
  6. Post Connecting to linux server using plink invoking GNU Screen & virtualev

    Hi I am currently working on a project which requires that I connect to a linux Server running Ubuntu 16.04 LTS and runs some python scripts. I...

    Started by yuristickney, 01-10-2017
    • Replies: 7
    • Views: 411
    01-12-2017 Go to last post
  7. Script to Kill process if it is taking too long

    Hi I am running a command on several files. Sometimes it takes too long to execute the command on heavy file. I wrote this script to kill the process...

    Started by paulk2017, 01-11-2017
    • Replies: 1
    • Views: 177
    01-11-2017 Go to last post
  8. bash get larger numerical match from multiple matching lines

    greetings. i have output which looks like the following: Jan 10 joe 2017 10:15:10 something for 2 but not from 3 pcs Jan 10 joe 2017 10:15:10...

    Started by bishop2001, 01-10-2017
    • Replies: 1
    • Views: 262
    01-10-2017 Go to last post
  9. C program under Linux

    I have recently(yesterday) started trying to learn linux and to program in this os. Now, one interesting and probably easy problem I came across...

    Started by JoeyMoey, 01-05-2017
    • Replies: 5
    • Views: 462
    01-06-2017 Go to last post
  10. *.php script dont work

    Hi, I have problems widht this PHP from website on my raspberry pi Itīs just 2 buttons to turn the relay on or of But nothing happens when i click...

    Started by hasseswe, 01-03-2017
    • Replies: 3
    • Views: 380
    01-06-2017 Go to last post
  11. shell parameter with #

    Teradata BTEQ script contains the following string with shell parameter: $CheckVar#LoadVar What does it mean? What does the part after sharp mean?...

    Started by oogolov, 01-02-2017
    • Replies: 1
    • Views: 286
    01-03-2017 Go to last post
  12. sourcing a script and passing arguments

    a1.sh . $HOMEDIR/b1.sh function1 echo "DATE1 = $DATE1" b1.sh function1() {

    Started by linuxamateur886, 12-27-2016
    • Replies: 2
    • Views: 373
    01-01-2017 Go to last post
  13. Multicasting

    Hi there! I have an application that performs a discovery via a Multicast and SLP. I have learnt that routers, by default, do not allow Multicast...

    Started by jesusitoLinux, 12-20-2016
    • Replies: 1
    • Views: 305
    12-24-2016 Go to last post
  14. Question How do you make an implementation of code inside the kernel?

    I've been set with the task which requires me to make an implementation of Hash_Drbg, the code I was given lies in the kernel and can be found if you...

    Started by Jauck, 12-17-2016
    • Replies: 2
    • Views: 318
    12-24-2016 Go to last post
  15. Python: Initializing package manager based on distribution?

    Ok so I'm writing a python script that executes Java & Git commands. as such I need to verify these apps are installed and install them if they are...

    Started by Saorthoil, 12-22-2016
    • Replies: 1
    • Views: 317
    12-22-2016 Go to last post
  16. BASH: simple script, check file modified date if loop

    Hi I'm very new in regards to unix programming.. I come from powershell. I'm setting up a kiosk RPI to show a powerpoint. The thought is that...

    Started by Symbiot78, 12-13-2016
    • Replies: 3
    • Views: 427
    12-18-2016 Go to last post
  17. Run process on one core ecxlusively?

    Hi, I think about using a (somewhat) realtime application on a SoC with Ubuntu operating system. I know, typically a realtime Linux is needed for...

    Started by Elmi, 12-15-2016
    • Replies: 4
    • Views: 380
    12-17-2016 Go to last post
  18. commandline: eml to msg conversion

    Hi Does anyone know a simple way to convert .eml email messages to .msg? Apparently there is a perl app (somewhere) that can do it but has anyone...

    Started by KevinYeandel, 08-02-2010
    • Replies: 2
    • Views: 3,014
    12-17-2016 Go to last post
  19. Using an implementation of Hash_drbg

    I am having trouble using the implementation of hash_drbg that can be found if you search 'drbg implementation'. it should be the first link from...

    Started by Jauck, 12-16-2016
    • Replies: 0
    • Views: 217
    12-16-2016 Go to last post
  20. trimming string in file

    Hello, I have a file with two differente lines, 20 characters each, named here sample1 and sample2: sample1 ABBAABBABABABABABABB sample2...

    Started by green2016, 12-16-2016
    • Replies: 5
    • Views: 413
    12-16-2016 Go to last post

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