Dawid Gosławski alkuzad

## install_jenkins_plugin.sh
#!/usr/bin/env bash

set -e
set -o pipefail

plugin_repo_url="http://updates.jenkins-ci.org/download/plugins"
plugin_dir="/var/lib/jenkins/plugins"
include_optionals=false

showUsage() {
	#!/usr/bin/env bash

	set -e
	set -o pipefail

	plugin_repo_url="http://updates.jenkins-ci.org/download/plugins"
	plugin_dir="/var/lib/jenkins/plugins"
	include_optionals=false

	showUsage() {