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That will probably depend on the ksh involved. ksh93 (at least all the versions i know of) can do brace expansion but with ksh88 it is a compile-time option.

I hope this helps.

bakunin

Yes I am too much used to bash and zsh.
But here is an alternative:
echo "\
06 29
06 30
07 01
07 02" |
while read mm dd
do
echo "$mm and $dd"
done

@MadeInGermany. Brace expansion is not part of POSIX:
$ for DATE in 06{29,30} 07{06,07,08,09}
> do
> echo "$DATE"
> done
06{29,30}
07{06,07,08,09}

How about:
for MD in "06 29" "06 30" "07 01" "07 02"
do
set $MD
M=$1 D=$2
echo "Month: $M Day: $D"
done


or:
for MD in "06 29" "06 30" "07 01" "07 02"
do
read M D << EOF
...

How about nested for loop?

E.g.
for day in 06 07 08 09
do
for month in 06 07
do
<command> $month $day 15
done
done