find . -path ./upld -prune -o ! -path . -print
This would use
find to delete everything from the current directory, including subdirectories. However, the path
./upld is not deleted (note that this must be the full relative path of the thing you want to skip, from the initial search path).
Run this and check the output, then replace
The safe option, from the parent of the directory in question:
mv olddir/upld newdir
rm -rf olddir
mv newdir olddir
That is, move the
upld subdirectory out of the way for safe-keeping, then delete the old directory completely.