to ping multiple devices:

tclsh
foreach  ADDRESS {
    192.168.1.231
    192.168.1.232
    192.168.1.233
    192.168.1.254
    192.168.1.111
} {ping $ADDRESS }

More advanced script that outputs OK next to the address if it works and unreachable if not. "puts" is like the echo command in linux

tclsh
foreach  ADDRESS {
    192.168.1.231
    192.168.1.232
    192.168.1.233
    192.168.1.254
    192.168.1.111
} {
    set RESULT [exec "ping $ADDRESS repeat 5 timeout 1"];
    if { [regexp "!!!" $RESULT]} { puts "$ADDRESS OK"} else { puts "$ADDRESS Unreachable"}
}

IOS.sh

# stored in running config
R1(config)# shell processing full 
 
# short term
R1# terminal shell

# This will give us the commands we have access to
R1# man
 
((              evaluate a numeric test expression
IOS.sh          The IOS shell
[[              evaluate a logical test expression
cat             output data from a pipe or file to the terminal
compatibility   compatibility information on IOS.sh
control         control constructs in IOS.sh
cut             edit piped output
echo            echo arguments to the terminal
expressions     usage of expressions in IOS.sh
false           return false in while or if expressions, and set the result
fetch           return values from the configuration database
for             IOS.sh for loops
functions       IOS.sh function facility
grep            search for regular expressions in piped output or files
head            print the first lines in the input
if-else         IOS.sh if command
interface       print interfaces that match the argument
let             evaluate a numeric expression, and set the result
local           Declare a variable in local to the function
man             print information for builtins
more            page piped output to the terminal
nl              number the lines in the input
null            ignore the input
printf          output formatted data to the terminal
quoting         IOS.sh quoting facility
read            read input into variables
scripting       how to script the IOS CLI
set_oper        set operational values
sleep           pause execution of the terminal
sort            sort the input
tail            print the tail of the input
true            return true in while or if expressions, and set the result
uname           print system information
variables       usage of variables in IOS.sh
wc              count lines, words, and chars
while           iterate while an expression is TRUE

# This will set a description on all interfaces
R1# for ii in `interface` ; do
conf t
interface $ii
description "Hello everyone"
end
done

IOS.sh

Guestshell 1 Intro