Give brief answers for the following Bash questions.
1) Does filename generation occur on variable assignment?
2) In the traditional Bourne Shell, does a sub-shell get created when there is I/O redirection to a loop?
3) Will the following command always correctly loop through each of the positional parameters?
for I in "$*"
do
echo $I
done
4) Will the following loop always execute only once?
for I in "$@"
do
echo $I
done
5) Will the following command sometimes execute once?
for I do echo $I done
6) Does a while loop always execute at least once?