using double pipe "||", bash will continue to the next statement if the
first statement returns false or has an error. Using the -N option, wget
will overwrite the file if it is newer. So, if the -O option was used,
and both wget commands failed (both http and https were down) then wget
would overwrite the file with a 0 byte copy and effectively delete it.
-N works better in this case, since wget will not overwrite it with an
empty file if it can't download it.
rm -f $SERVER was a bad idea, as it deletes the server file regardless
of whether wget is able to download a new one. If you keep a copy of
spigot_server in the server directory, wget will fail if it's unable to
pull the file and it wont delete what you already have.
jtcressy