if you are using bash
#!/bin/bash
shopt -s extglob
ls !(fubar).log
or without extglob
shopt -u extglob
for file in !(fubar).log
do
echo "$file"
done
or
for file in *log
do
case "$file" in
fubar* ) continue;;
* ) echo "do your stuff with $file";;
esac
done