if( args.length != 3){
println "Hey necesito el fichero de entrada, el de salida y la cadena a buscar"
return
}
inputFile = new File(args[0])
outputFile = new File(args[1])
search = args[2]
outputFile.newWriter().withWriter { writer-> // (1)
inputFile.eachLine { line, indx -> // (2)
if (line.indexOf(search) != -1)
writer << "$indx: $line\n" // (3)
}
}