psql question: aborting a "script"

I'm likely abusing the psql program. What I have is an awk program which reads a file and produces a number of INSERT INTO commands. I then feed these commands into psql to execute them. Yes, a Perl program would be a better idea. Anyway, sometimes the commands are rejected due to some problem, such as duplicate primary key. What I wish is that the psql command had a switch, or control command, which would say "exit from psql if anything fails". To me, this is like the BASH "set -e" command for a shell script. Does this sound like a useful addition. Or am I just missing where it already exists?