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ScAlAn

Scientific Algorithms and Analytics

Tag: linux (page 2)

AWS get list of ec2 ids by beanstalk environment name

Task: Get list of EC2 instances Id(s) by beanstalk environment name Solution: envname=”wp-env” for ec2Id in $(aws elasticbeanstalk describe-environment-resources –environment-name…
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Posted on: October 29, 2021 Last updated on: October 29, 2021 Comments: 0 Written by: Alex

Linux: /dev/ttyUSB0: Permission denied

Problem: Can’t connect to the Arduino device. Solution: Run next command(s) under root user: usermod -a -G dialout scalan usermod…
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Posted on: September 21, 2021 Last updated on: September 21, 2021 Comments: 0 Written by: Alex

Docker: How to copy file from container to local computer

Task: Copy some file from container to local computer Solution: docker cp <container>:<path><filename.ext> <localpath> Example: docker cp nginx:/var/log/mylog.log . Done.
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Posted on: September 1, 2021 Last updated on: September 1, 2021 Comments: 0 Written by: Alex

Install MariaDB on Ubuntu

Task: Install mariaDB server on Ubuntu Implementation: Update packages:sudo apt updatesudo apt upgradeInstall MariaDB server package:sudo apt install mariadb-serverCheck status…
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Posted on: May 10, 2021 Last updated on: April 27, 2021 Comments: 0 Written by: Alex

Raspberry Pi Virtual keyboard

Task: Add Virtual (screen) keyboard on Raspberry Pi device Implementation: Install virtual keyboard application Add a Virtual Keyboard Toggle to…
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Posted on: February 24, 2021 Last updated on: February 24, 2021 Comments: 0 Written by: Alex

Fix upgrade Jenkins on Ubuntu

While I am updating Jenkins server – see: How to fix: Output: Try to upgrade: Done.
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Posted on: January 25, 2021 Last updated on: February 25, 2021 Comments: 0 Written by: Alex

Howto get list of directories and their size in Linux

Task: Get lust of directories and their size Solution: du -sh * With hidden directories: sudo du -sh $(ls -A)…
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Posted on: December 19, 2020 Last updated on: December 23, 2020 Comments: 0 Written by: Alex

Howto wait beanstalk environment to be ready

Task: Implement loop to wait till AWS BeansTalk environment will be ready Implementation: #!/bin/bash echo ‘Waiting…’ status=” iterations=0 maxiterations=20 while…
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Posted on: December 19, 2020 Last updated on: December 23, 2020 Comments: 0 Written by: Alex

Script to prepare iPod audiobook on ubuntu from mp3 files

Task: create iPod audiobooks on linux (Ubuntu) with tempo = 1.5 Solution: Run this script in the directory with mp3…
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Posted on: December 5, 2020 Last updated on: December 23, 2020 Comments: 0 Written by: Alex

Howto setup nginx+Jenkins+SSL+SSH on EC2 ubuntu

Task: Setup Jenkins on EC2 Ubuntu Implementation steps: Update Ubuntu and install nginx: sudo apt updatesudo apt upgradesudo apt install…
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Posted on: November 17, 2020 Last updated on: December 23, 2020 Comments: 0 Written by: Alex

Configure your personal cloud

Task: Install nextcloud app on your instance Implementation: OS: ubuntuServer: nginx Steps: sudo apt update sudo apt upgrade sudo apt…
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Posted on: November 6, 2020 Last updated on: December 23, 2020 Comments: 0 Written by: Alex

Howto setup docker in Ubuntu 18.04

Task: setup docker in Ubuntu 18.04 Implementation: sudo apt  install docker-composesudo docker ps To avoid use ‘sudo’ do next: sudo…
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Posted on: October 28, 2020 Last updated on: December 23, 2020 Comments: 0 Written by: Alex
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