Documentation for JIRA 4.4. Documentation for other versions of JIRA is available too.
If you ever want to restart JIRA from the Setup Wizard again:
bin\shutdown.bat
(for Windows) or bin/shutdown.sh
(for Linux/Solaris) in your JIRA Installation Directory (for JIRA Standalone) or the Apache Tomcat installation directory running JIRA WAR.dbconfig.xml
file in your JIRA Home Directory.