dozip
void dozip(Char **, struct command *);
static struct biltins label = {"", dozip, 0, 0};
{ "case", dozip, 0, 1 },
{ "default", dozip, 0, 0 },
{ "endif", dozip, 0, 0 },
{ "endsw", dozip, 0, 0 },
bifunc->bfunct != dowhile && bifunc->bfunct != dozip)