I have the following in a ivr menu 
When run from the command line the results of pingtest 127.0.0.1 come back as
000 001 100 127.0.0.1
where its 0ms 1 hop 100% reliable
in asterisk i do

exten => s,1,System(/usr/local/bin/pingtest 127.0.0.1 > results)

but nothing happens how can i get the info into asterisk for it to read out