I need to write a chron job that runs at midnight local time stores collected data, clears counters

collects the output of sho atm counters and send that data to a collection file
send command clear counters atm 5/0 pvc all -no confirm
disable the enable mode
close out of redback
store file with time/date stamp
parce the newly gathered file into xcell.xls spread sheet and mail out the report as an automated function

build a directory to store data files for x amount of time



I need another chron job that will go in at 06:00 and just clear counters and logout that will allow 1st job to collect stats from 06:00am to 23:59pm daily



I'm new to Unix and was hoping someone could help?