portable sed usage
[confetti] / cards /
drwxr-xr-x   ..
-rwxr-xr-x 1199 edit_card.sh
-rwxr-xr-x 870 export_card.sh
-rwxr-xr-x 1556 filter_card.sh
-rwxr-xr-x 534 index.cgi
-rwxr-xr-x 2268 l10n.sh
-rwxr-xr-x 6255 list.sh
-rwxr-xr-x 1256 new_card.sh
-rwxr-xr-x 4940 update_card.sh
-rwxr-xr-x 10550 widgets.sh