Intr-adevar,
Comanda veche era :

*/10 8-20 * * 2-7 php 
/var/www/html/public_html/scripts/verificare_carti_noi_100.php > 
/dev/null 2>&1

Se pare ca 2-7 inseamna Marti-Duminica.

L-am modificat pentru Luni-Sambata

*/10 8-20 * * 1-6 php 
/var/www/html/public_html/scripts/verificare_carti_noi_100.php > 
/dev/null 2>&1