Attach database issue sqlite

Question

I'm importing a csv to a table in the database in the following way. In terminal:

Terminal>sqlite3 test.db 
sqlite3>.import /Users/Downloads/test.csv trial1
sqlite3> attach database 'test.db' as 'alias_test';
sqlite3> .database
seq name file 
--- --------------- ----------------------------------------------------------
0 main /Users/Downloads/testattach.db 
2 test_alias /Users/Downloads/testattach.db 

But when I restart the terminal and type:

>sqlite3 test.db '.database'

I get:

seq name file 
--- --------------- ----------------------------------------------------------
0 main /Users/Downloads/testattach.db 

I want to understand why the attached database name is not shown when I access the database again.

Answer 1

The documentation says:

The ATTACH DATABASE statement adds another database file to the current database connection.

Restarting creates a new connection.