Why do we still use shell commands to program? [closed] - ruby-on-rails

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As a beginner & new developer attempting to learn the ropes, I am curious why we still use package managers, shell commands, and all of these things that seem like the early DOS days.
Wouldn't it seem more logical to have a GUI to simply set up an app on Heroku from Github without having to always fix all of your local environment errors and updating gems, etc?
May be a stupid question, but truly curious why it hasn't changed.

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Why do we need Docker? [closed]

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I need a detailed answer to explain
importance of docker
need of Docker , why are we using docker
how Docker plays an important role in the field of development and Deployment .
Top benefits are:
isolation of the environment
easy to test out new software/technologies without any effort to install them
deployments are very fast
integrates great with the concept of micro services
popularity
there is a lot of useful images, that can be used, by a lot of companies
There is also a lot of good articles, that you can find, when you type something like "docker biggest benefits" in google.

Docker - SQL Server Linux auto shutdown [closed]

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This is a first time I use docker, so I'm trying install sql-server-linux use docker in MacOS Mojave.
I'm read tutorial from https://database.guide/how-to-install-sql-server-on-a-mac/. But I meet a problem, my database server auto shutdown.
I'm tried with sudo code but nothing change.
I'm research and nothing talk about this issue.
I have written several webcrallers and always find it easier to build them from the ground up! Scrapy is a very nice module but it's documentation is a little lacking and can be quite challenging to begin with! I recommend using BeautifulSoup4, Python bult in Urllib2, and some socket module! Good luck!

Erlang run time environment [closed]

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Can someone explain what is Erlang run time environment and what dose it contain? Dose it contain erlang VM, what else ?
Regards
MM
The Erlang runtime environment in particular contains the Erlang virtual machine, the kernel and the standard libraries.
Erlang in general provides a lot more tools (compiler, debugger, monitoring tools etc.).
For details, please have a look at the documentation at: http://www1.erlang.org/documentation/doc-4.8.2/doc/system_architecture_intro/sys_arch_intro.html

Node.js vs Ruby on Rails [closed]

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Which one is more futureproof at this point?
Which one is better for creating simple web apps in smallest time?
This also might be a question of JS vs Ruby, what do you think of this?
What are the pros and cons of each?
I suggest you do more google on this topic because it is a very general topic. However these articles offer some comprehensive comparisons:
http://ilikekillnerds.com/2014/07/should-i-use-ruby-on-rails-or-node-js-for-my-next-projectstartup/
http://fabianosoriani.wordpress.com/2011/09/11/when-to-ruby-on-rails-when-to-node-js/

Which DB for Registration Form iOS? [closed]

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i would like to code a Registration Form + Login form for iOS. I don't know very well which DB i can use. I thought to use PHP + MySQL. Do you think is a good idea?
Who can explain me the best option?
iOs app should know nothing about DB. You need to make an API in some other langulage (PHP in your case), which will work with DB.
MySQL is good option as it's free and has a lot of features.

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