Here is a sample Tcl script to ping list of IPs
Cisco_script# tclsh
Cisco_script(tcl)# foreach IP { <— "IP" can be changed to any value.
+> 1.1.1.1
+>2.2.2.2
+>3.3.3.3
+> } { ping $IP }
Another example
Router(tcl)#foreach IP {
+>1.1.1.1
+>2.2.2.2
+>3.3.3.3
+>4.4.4.4
+>5.5.5.5
+>6.6.6.6
+>} { puts "[ exec ping vrf a $IP repeat 2 ]" }