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Linux Mastering Development Ubuntu

Problem with Ubuntu Software v 20.04 LTS

I have 3 problems with Ubuntu Software in v 20.04 LTS 1. I am only presented with the list for Editors Choice. None of the other tabs are available I tried to install a code editor that I’ve been using for several versions of Ubuntu with no problem but was not installed on the upgrade. […]

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Linux Mastering Development Ubuntu

A new partition appeared in nautilus

I don’t know how this new mounted partition named, “52 MB Volume” appeared. It can be ejected with the message 52MB Volume unmounted filesystem has been disconnected Is it something to worry about?

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Linux Mastering Development Ubuntu

4 Clicks to Shutdown Ubuntu – Can we reduce this?

Ubuntu 20 has decided we need 4 clicks to shutdown: Click top right of screen arrow-down Expand “power off/logout” panel Click “Power off” Confirm you want to power off by choosing power off vs reboot etc Let’s cut out at least 2 clicks here… how?

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Linux Mastering Development Ubuntu

gpg: invalid key resource URL following Docker official guide

I’m following the official guide to install Docker. And in step 2 Add Docker’s official GPG key, I got the following error: $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add – gpg: invalid key resource URL ‘/tmp/apt-key-gpghome.Rcg4Lpatvi/home:manuelschneid3r.asc.gpg’ gpg: keyblock resource ‘(null)’: General error gpg: key 1488EB46E192A257: 1 signature not checked due to a missing key […]

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Game Creation Mastering Development

How to change a float variable from another script based on distance to it

This is technically 2 questions but I may as well kill 2 birds with 1 stone. In my game I want the cameras glitch filter effect to increase the closer it is to a gameobject. I have tried achieving this by using a waypoint script that i got and where it writes down the metres […]

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Linux Mastering Development

how can I install jansson 2.11-devel or above in centos7?

OS: CentOS Linux 7 (Core) x86_64 Host: VirtualBox 1.2 Kernel: 3.10.0-1127.8.2.el7.x86_64 Packages: 638 (rpm) Shell: bash 4.2.46 Terminal: /dev/pts/0 CPU: Intel i5-4200U (1) @ 2.294GHz Memory: 217MiB / 1813MiB I Wanna install a software (asterisk) that require configure: *** Asterisk requires libjansson >= 2.11 and no system copy was found. configure: *** Please install the […]

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Linux Mastering Development

Understanding the dig’s DNS query: Does dig set non zero value for Z field?

When I was scrutinizing the DNS query sent by the dig, I found something odd from what RFC’s state. I don’t know the different variants of DNS protocols out there, but from RFC 1035 Z : Reserved for future use. Must be zero in all queries and responses. This is the memory snapshot of the […]

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Mastering Development

Is there a way to find where the code creates the dynamically popup on browsers?

When I open a website that’s not developed by me, it created a pop up of a DIV element. How can I find which code create that popup? I tried to set the breakpoint, but it only show the popup in the first time. Please note the key here are It’s a website that’s not […]

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CMS Magento Mastering Development

Multi Tax options In magneto 2

I am looking a Solution for my store. I have two types of products. Option 1: The tax should be calculate after discount amount if exist. **Price: USD 100 Discount :10 % Remaining amount : 90 17 % GST( Remaining Amount) = 15.3 Total amount: 105.3**** option 2 : The tax should be calculate on […]

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Mastering Development Software

Is Continuous Integration nowadays intended as “Continuous Inspection”?

I’ve been reading a log about CI (mostly Addison-Wesley books) and taking “CI” courses. I see two clear distinctions between old books on CI and new ones: Old ones focus on “committing” or “pushing” your code often (integrating often) New ones talk about practices for having feedback early in the process, like running builds and […]