Add basic shell scripting questions

scenarios/jenkins_pipelines.md

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+## Jenkins Pipelines
+
+Write/Create the following Jenkins pipelines:
+
+* A pipeline which will run unit tests upon git push to a certain repository
+* A pipeline which will do to the following:
+
+  * Provision an instance (can also be a container)
+  * Configure the instance as Apache web server
+  * Deploy a web application on the provisioned instance

scenarios/jenkins_scripts.md

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+## Jenkins Scripts
+
+Write the following scripts:
+
+* Remove all the jobs which include the string "REMOVE_ME" in their name