Category "linux"

Why do system calls use a different stack?

Here is a question about the details happening during system call. However, one thing surprises me that the TSS maintains different stacks for different privili

How to run a Java download command using shell in ansible

I want to download and install Java in one our VMs using Ansible. I tried with yum and that was successful but, as part of requirement I was asked to do it anot

How do i get code completion for C# scripts in VSCode for Unity on Linux/Ubuntu?

I recently came back to unity, as i found out that it does now support installation linux. It works, but when editing the scripts with vscode i do not get code

Install talib on docker

FROM python:3 USER root RUN apt-get update RUN apt-get -y install locales && \ localedef -f UTF-8 -i ja_JP ja_JP.UTF-8 RUN wget http://prdownloads

Why SCHED_FIFO threads are assigned to the same physical CPU even though idle CPUs are available?

While debugging some performance issue in app I'm working on, I found out weird behaviour of kernel scheduler. It seems that busy SCHED_FIFO tasks tend to be sc

Authentificate users of another active directory using first active directory using Tomcat and LDAP on Linux

I have two active directories ad1 and ad2 that are trusted by each other. Ad1 has groups that contain both users of ad1 and ad2. Using a Tomcat realm of a Linux

Does Linuxptp support IEEE802.1AS 2020 standard?

Could anyone please tell me if the linuxptp is planning to release IEEE802.1AS-2020 support for linuxptp stack Is there any plan/timeline for this release? If a

copy files from folder based on csv file list

I want to copy certain files from a folder based on a list stored in a .csv file. Previously I used rsync to do this using rsync -a /source/directory --files-fr

Duplicate camera stream not working with custom frame width and height

I have been able to duplicated my webcam stream on ubuntu with gst-launch-1.0 v4l2src device=/dev/video0 ! tee name=t ! queue ! v4l2sink device=/dev/video2 t.

Duplicate camera stream not working with custom frame width and height

I have been able to duplicated my webcam stream on ubuntu with gst-launch-1.0 v4l2src device=/dev/video0 ! tee name=t ! queue ! v4l2sink device=/dev/video2 t.

How to create an alias composed of many commands?

Commands are: git checkout master git remote add upstream [email protected]:minio/console.git git fetch upstream git checkout master git rebase upstream/master Wh

"sleep 5" doesn't delay script for five seconds [closed]

When I use the sleep command and execute the script the sleep doesn't work. The code just gets executed without stopping for the expected 5 se

Splitting a file based on number of records and file size

I have a file which contains 100 records... Each record has different size, like some are 1 KB while some are 1 MB. I want to split the file based upon number o

Raspberry pi 64 bit Os showing Unable to locate package libjasper-dev. how to fix this?

I am using a raspberry pi 4. And I installed a 64-bit (not 32-bit) Raspberry Pi OS. When I tried to install libjasper-dev using the command 'sudo apt-get instal

run script when chrony steps clock

I need to start a certain service after system clock was correctly stepped by crony. System time is maintained by chrony (chronyd (chrony) version 3.5 (+CMDMON

vscode ssh develop Go cannot stop at breakpoint when code under /home/{username}/ floder

I have the remote develop problem. I want to ask for some advices to solve this problem. when my code under ~/ floder, debug cannot stop at breakpoints: when

Loading some packages with Rstudio server does not work, while it works with R server

I am using Rstudio server on a remote server and I have some packages already installed. When I try to load libraries like raster or terra using Rstudio server,

Check log file for error only for last 10 mins

I've a log file with below text, [2022-05-05T22:25:58,523] Text/debug data I want to fetch log data for errors in only last 10 mins to configure in cron. How t

bash: No such file or directory when file is clearly present

I have a shell script located at "/home/pi/scripts/take-snapshot.sh" but when ever I try to execute it I get a error that the file is not present. the following

How can I put a prefix on every information outputed from GDB?

I would like to put a prefix, like "GDB> ", on every output from gdb to distinguish it from the output of my program. Is that possible? An example: test.c #i