View Struts2
old page
https://www.ntu.edu.sg/home/ehchua/programming/java/Struts2.html
View gist:3d7926cfc5136aa95b3342b7fcd1c15a
https://www.ntu.edu.sg/home/ehchua/programming/sql/PostgreSQL_GetStarted.html
View gist:9ea5b68a1bafa75918a228748ce80a54
http://unix.stackexchange.com/questions/88644/how-to-check-os-and-version-using-a-linux-command
View gist:9108704882705396497322d0b2e00478
https://docs.docker.com/engine/tutorials/dockerimages/
View gist:fb52870ea2217e112a88edfc39387985
https://docs.docker.com/engine/reference/builder/
View gist:a8bc11c615dc112c60ce85d93be498dd
http://www.computerhope.com/issues/chspace.htm
View gist:5362d38c358c4e8e88440e137f14181f
chmod OWNER GROUP WORLD PATH
4 read (r)
2 write (w)
1 execute (x)
7 = 4+2+1 (read/write/execute)
6 = 4+2 (read/write)
5 = 4+1 (read/execute)
View gist:35ef618baaa068e4f67b32fc9b65509e
http://kubernetes.io/docs/user-guide/persistent-volumes/walkthrough/