May use this as starting information for a site...

locations

OSX (Sierra)
=====
/usr/libexec/java_home          - Reports on current JAVA_HOME (or at least what it should be)
/usr/local/apache-tomcat-8.5.23 - Tomcat installation

Linux
=====
Bash Profiles
  ~/.bashrc
  ~/.bash_profile
 
/etc/fstab                      - The place for mounting, e.g. //<server>/<folder> <localfolder> cifs auto,username-[username],password=[password],uid=0,gid=500 0 0
/etc/hosts                      - The place for hardcoding DNS entries
/var/log/                       - Log files
/etc/sudoers                    - Sudoers settings
/etc/rc.d/rc.local              - Startup script location
/usr/local/bin                  - Executable scripts (to make available as system wide commands)
 
/etc/httpd/conf.d/httpd.conf    - Apache config
/etc/apache2/apache2.conf       - Apache2 config
/etc/yum.conf                   - Yum config
/etc/network/interfaces         - Network interfaces config