Create explore-catalog.gsql

demos/guru_scripts/docker/tutorial/4.x/script/explore-catalog.gsql

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+//show what's in financialGraph scope
+use graph financialGraph
+ls
+
+//list what's in global scope
+use GLOBAL
+ls
+
+//SHOW <VERTEX> | <EDGE> | <JOB> | <QUERY> | <GRAPH> | <PACKAGE> [ <name> | <glob> | -r <regex> ]
+
+//show vertex types
+SHOW VERTEX Acc*            //shows all vertex types that start with the letters "Acc"
+SHOW VERTEX Ac?*t         //shows the vertext types that starts with "Ac" and ends with "t"
+SHOW VERTEX ?????          //shows all vertices that are 5 letters long
+
+
+//show query c1 content
+USE GRAPH financialGraph
+LS
+SHOW QUERY c1