Output shell variable from psql

[Murthy Nunna <mnunna@xxxxxxxx>]

Hi,

 

Is there a way to output shell variable from psql?

 

export TEST_V=7

echo Value is  ${TEST_V}

Value is 7

 

psql -U postgres -p 5439

\echo Value is  ${TEST_V}

Value is ${TEST_V}

 

Thanks!