I'm studying about pipes and redirects in Bash and came across a situation i can't find an explanation about how bash processes its pipes and redirects. I was testing this command: cat << EOF > arquivo.txt | wc -l <…
I am trying to install ros noetic following ros wiki tutorial. When i try to sudo apt install ros-noetic-desktop-full an error ocurres. samet@samet-X540LA:~$ sudo apt install ros-noetic-desktop-full Reading package lists... Done Building dependency tree Reading state information... Done Some packages…
Firstly, I am not very familiar with Ubuntu OS. I am a windows guy. For a client requirement, I created a ubuntu virtual machine (22.04) in azure cloud and I had developed a bash script which installs the following: Java…
I'm using Debian/Ubuntu, and I am trying to install an Airflow provider in my Python virtual environment: $ pip install apache-airflow-providers-mysql error: subprocess-exited-with-error × Getting requirements to build wheel did not run successfully. │ exit code: 1 ╰─> [24 lines…
I'm having troubles with my MySql server. It's used mainly for storing production logs, but unfortunately it seems like it it too slow and i dont know if there is something i could do to improve it.Sometimes there is even…
I'm doing this: $ apt-get install -y openssl $ gem install openssl -- --with-openssl-include=/usr/include/openssl It fails: ... checking for openssl/ssl.h... yes checking for CRYPTO_malloc() in -lcrypto... yes checking for SSL_new() in -lssl... yes checking for LIBRESSL_VERSION_NUMBER in openssl/opensslv.h... no checking…
I am trying to restore my backup that is in .backup format to vercel but i keep getting this error pg_restore: error: unsupported version (1.15) in file header pg_dump --version pg_dump (PostgreSQL) 15.4 (Ubuntu 15.4-1.pgdg22.04+1) psql --version psql (PostgreSQL) 15.4…
I have a JavaFX Tetris game that uses the MediaPlayer class to play music and sound effects. Specifically, in my SoundPlayer class that handles all audio, I load in the game's .wav files when game is started, and iterate each…
I want to establish a serial connection with a esp32 (connected via USB to my PC) and a test website on chromium (version 118.0.5993.88, Ubuntu 20.04) but the list of serial connections is empty on chromium (on google chrome the…
When I'm trying to run sudo apt install snapd It shows the error as below: Reading package lists... Done Building dependency tree... Done Reading state information... Done Package snapd is not available, but is referred to by another package. This…