Regarding Changes in jil scripts

Hi

i have taken a jil and i am placing the file name as a1.jil

and a1.jil contains the following things

/* ----------------- sample_ls ----------------- */

insert_job: sample_ls job_type: c
command: ls -l
machine: unixboxa
owner: user123@unixboxa
permission: wx,mx,we,me
description: "runs an ls -l as user123"
job_terminator: 1
alarm_if_fail: 1

i just need to change the machine name , alarm if fails and owner id thrugh unix shell scripting can any one help me on this ..

Just need to kick off the unix script and it need to prompt me with instance id , owner id , alarm if fail and it should ask for user entry

Thank a lot !!