About not to see insertion result "INSERT 0 1"

Greetings,

I tried to run insert command from a .sql file. For example, in a.sql
file there are 100,000 lines like
insert into t1 values(... ...);
insert into t1 values(... ...);
insert into t1 values(... ...);
... ...

I do not want to see the 100,000 times "INSERT 0 1" displayed by
postgreSQL. Is there a way to hide the output "INSERT 0 1" generated by
postgresql ?

Thanks a lot!
Emi