DevNet Associate DEVASC 200-901 Official Certification Guide by Adrian Iliesiu (z-lib.org)

sending data or receiving output from the model through the controller. The view’s primary function is to render data. Controlle ...

communicate to it. The only function of the observer is to synchronize its data with the subject when called. The key thing to u ...

Getting to Know BASH BASH is a shell, and a shell is simply a layer between a user and the internal workings of an operating sys ...

history as part of the shell, where you can use the arrow keys to cycle through and edit previous commands. UNIX platforms such ...

<output cut for brevity> Not every command is intended to be run with user-level privileges. You can temporarily upgrade y ...

import urllib.request from pprint import pprint def get_local_weather(): weather_base_url = 'http://forecast.weather.gov/MapClic ...

Figure 2-7 UNIX Directory Structure Whenever you call a file, you have to supply its path. Everything you execute in UNIX is in ...

$ cd test Changes directory to the test folder $ cd .. Moves up one directory pwd If you ever get lost while navigating around t ...

$ ls /home/usern ame Lists everything in the /home/username directory $ ls -l Lists permissions and user and group ownership $ l ...

backup. The command requires several parameters: the name of the file you want to copy and where you want to copy it to and the ...

eb.txt ~/calebfinal.txt $ mv -i * /home/username/ne w/ Moves all files and directories in the current folder to a directory call ...

cat The cat (which stands for concatenate) command allows you to view or create files and also pipe to other commands. It’s one ...

If you execute this command, you are likely to notice a lot of keywords with the = sign tied to values. One environment variable ...

.bashrc with your favorite text editor, or use the following command: Click here to view code image $ echo "export PATH=$PATH:/H ...

revision control or source control, but it all falls under the topic of software configuration management. Once you have used an ...

Associate DEVASC exam will test your knowledge of it, so the next section covers how to use Git. GIT If you are working with ver ...

creator after all.) Git keeps track of three main structures, or trees (see Figure 2-8): Local workspace: This is where you stor ...

Figure 2-9 Git File Status Lifecycle If at any point you want to see the status of a file from your repository, you can use the ...

Figure 2-10 Git Workflow Using Git Git may not come natively with your operating system. If you are running a Linux variation, y ...

plumbing commands and tools are not ones you will be using on a regular basis and are not covered on the exam. Cloning/Initiatin ...