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//avoid asking for pswd over http
//source: https://help.github.com/articles/caching-your-github-password-in-git/

git config --global credential.helper cache

git config --global credential.helper 'cache --timeout=3600'

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//git 1.7.2 ++
git submodule update --recursive --remote

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@mixin prefix($name, $argument) {
  -webkit-#{$name}: #{$argument};
  -ms-#{$name}: #{$argument};
  -moz-#{$name}: #{$argument};
  -o-#{$name}: #{$argument};
  #{$name}: #{$argument};
}

@mixin linear-gradient($fromColor, $toColor) {
  background-color: $toColor; /* Fallback Color */

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//Comand-line:  Crea el ambiente de trabajo para localizar las dependencias del proyecto y seleccionar la version de python3

//default method
virtualenv -p python3 envname

//recomended method
python3 -m venv venvname

//start enviroment linux
source env/bin/activate

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php -i|grep 'php.ini'

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#This may work if your image does not boot with HDMI
#Edit system-boot/config.txt
#Force HDMI in raspberryPi 3
config_hdmi_boost=4
hdmi_mode=16
hdmi_force_hotplug=1
hdmi_drive=2

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// Only IP
dig +short myip.opendns.com @resolver1.opendns.com

// Or everything:
dig myip.opendns.com @resolver1.opendns.com

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From Woocommerce 3.3 you can use

[sale_products limit=’10’ paginate=’true’]

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<div id="htmlcode" onclick="selectContent()">XXXXXXXXXXXXX</div>
<style>
function selectContent() {
    const node = document.getElementById('htmlcode')

    if (document.body.createTextRange) {
        const range = document.body.createTextRange()
        range.moveToElementText(node)
        range.select()
        document.execCommand('copy')

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How to fix docker ‘Got permission denied while trying to connect to the Docker daemon socket’
Problem:

You are running a command like docker ps but you get this error message:

    Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.39/containers/json: dial unix /var/run/docker.sock: connect: permission denied

Solution:

As a quick fix, running the command as root using sudo (e.g. sudo docker ps) will solve the issue temporarily.