testing consul watches

watches.txt

//agent config file with watch handler  
 {
"advertise_addr": "127.0.0.1",
"bind_addr": "127.0.0.1",
"data_dir":"/tmp/consultest",
"datacenter":"mydc",
"ui":true,
"server":true,
"watches":[
{
  "type": "key",
  "key": "test",
  "handler": "/home/preetha/watch_handler.sh"
}
]
}

//contents of watch handler script (it echoes the input, nothing fancy) 
#! /bin/bash
[ $# -ge 1 -a -f "$1" ] && input="$1" || input="-"
cat $input