postgresql checking return status of archive_command?

[John Scalia <jayknowsunix@xxxxxxxxx>]

hi all,

First off, my thanks to everyone who responded to my last post regarding copying WAL segments to 2 standby servers. My script is working wonderfully now, but I have a followup 
question like the subject line. Does postgresql or any of its child processes check the return code of the command executed in the archive_command and does it log anything if that 
return code is NOT zero? I've been trying to think of easy ways to force an error to test, but thought I'd ask first.

TIA,
Jay