scripting questions

thesnaggle · 02-27-2009, 05:18 PM

I have a backup script that i wrote a while back that goes to different pcs on my network.

everything works good but i have since added a laptop that is not always here is there anyway that i can setup my script that if the laptop is not here that the old data that was backed up when the laptop was here not to be destroyed

TBC Cosmo · 02-27-2009, 05:35 PM

So you are deleting the previous backups on each successful run, but want to preserve the laptop's if it is not on the network, and not able to be backed up?

Maybe try to ping for it in your script? If no response, then no deletion?

thesnaggle · 02-27-2009, 05:40 PM

Quote:

Originally Posted by TBC Cosmo

So you are deleting the previous backups on each successful run, but want to preserve the laptop's if it is not on the network, and not able to be backed up?

Maybe try to ping for it in your script? If no response, then no deletion?

that is my plan but im not exactly sure on how to tell my script to do what i want

TBC Cosmo · 02-27-2009, 05:53 PM

Ok, so I guess that you need to test for the existence of the laptop on the network to decide whether to do the backup and delete the old.

Code:

if ping -c 3 w.x.y.z >/dev/null 2>&1
then
    backup-routine
    delete-previous-routine
fi

thesnaggle · 02-27-2009, 06:01 PM

Quote:

Originally Posted by TBC Cosmo

Ok, so I guess that you need to test for the existence of the laptop on the network to decide whether to do the backup and delete the old.

Code:

if ping -c 3 w.x.y.z >/dev/null 2>&1
then
    backup-routine
    delete-previous-routine
fi

this is a big help and i think that it will get me to where i want to be thanks for the help and i may post again if i get stuck thanks again

thesnaggle · 02-27-2009, 06:13 PM

one more question how do i tell it which one to use i made a test script and it runs both my scripts i have put in

TBC Cosmo · 02-27-2009, 06:28 PM

You want to run both routines if the laptop is there. Otherwise that whole thing is skipped if it's not available. The end result is that when on the network - the laptop gets backed up and the previous backup is discarded. If it is not, then the script skips and moves on to backup the other machines.