rblcheck(1) on Linux
The text 8af659e224f8, as Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.
check if an IP address is blacklisted
Flags it lists
-
-? -
-c -
-h -
-l -
-m -
-q -
-s -
-t -
-v