First session, "join" the TSM server:
dsmc q sess
Show backup schedule:
dsmc q sched
Restore examples:
dsmc restore /var/www/www.somedomain.it/ /tmp/www.somedomain.it/ -subdir=yes
dsmc restore /var/www/www.somedomain.it/ /tmp/www.somedomain.it/ -subdir=yes -pitd=7/18/2016 -pitt=13:00:00
Do not forget the trailing "/" in the directory names!