Shell script for executing hbase commands - Deleting all hbase tables

Question

I want to delete all tables in HBase. I am using HBase shell commands for doing this operation:

$ hbase shell
 > disable_all .*
 > drop_all .*

How can i write a shell script for doing this operations ?

Note: While executing above commands, it asks for the user confirmation i.e y/n before disabling and dropping all tables.

Answer 1

I use the following:

#!/bin/sh
echo -e "disable_all '.*'\ny" | hbase shell -n
echo -e "drop_all '.*'\ny" | hbase shell -n

The -e flag to echo causes it to process escape sequences so you can build the confirmation into it. The -n tells hbase shell this is a non-interactive session.