18:37:54 le@x230:35:~/gitest/backtest [0]$  shopt |grep dotgl
dotglob        	off

18:38:06 le@x230:35:~/gitest/backtest [0]$ mkdir -p .dir-{1..9}/blah/wutwut

18:38:16 le@x230:35:~/gitest/backtest [0]$ ll
total 44K
drwxrwxr-x 11 le le 4.0K Feb 28 18:38 ./
drwxr-xr-x  5 le le 4.0K Feb 28 16:52 ../
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-1/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-2/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-3/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-4/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-5/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-6/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-7/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-8/
drwxrwxr-x  3 le le 4.0K Feb 28 18:38 .dir-9/

18:38:17 le@x230:35:~/gitest/backtest [0]$ ll .dir-1/blah/
total 12K
drwxrwxr-x 3 le le 4.0K Feb 28 18:38 ./
drwxrwxr-x 3 le le 4.0K Feb 28 18:38 ../
drwxrwxr-x 2 le le 4.0K Feb 28 18:38 wutwut/

18:38:45 le@x230:35:~/gitest/backtest [0]$