Deleting elements from a list with a given condition

n = 2 list = Permutations[Range[-n, n], {2}]; list = {{-2, -1}, {-2, 0}, {-2, 1}, {-2, 2}, {-1, -2}, {-1, 0}, {-1, 1}, {-1,    2}, {0, -2}, {0, -1}, {0, 1}, {0, 2}, {1, -2}, {1, -1}, {1, 0}, {1,    2}, {2, -2}, {2, -1}, {2, 0}, {2, 1}} 

How can I delete the cases where Abs[a+b]>n and {a,b} are elements of the list? In the example above, I would like to delete {-2,-1} and {2,1} from the list.

Crontab influences bash script if condition?

I am a bit baffled here, and not really sure how to debug this. I have a self-written bash script, that checks if a samba share is active, and if not, sends me an email.

Script is in /root/SKRIPTS/, permission looks like this:

-rwxr-xr-x   1 root  wheel   281 Nov  8 08:54 test_samba_shares.sh -rwx------   1 root  wheel    39 Nov  7 13:56 smbclient.cred 

Content of the .sh script is this:

smbclient -L 10.0.0.1 -A /root/SKRIPTS/smbclient.cred | grep -q Backup  if [ $  ? -eq 0 ] then     echo "Backup_* mounted, nothing to do" else     echo "Subject: Samba has failed" | /usr/sbin/sendmail -v mail@localmail.server fi  return 1; 

/etc/crontab looks like this (entry only)

10 1 * * * root /root/SKRIPTS/test_samba_shares.sh 

The thing is, if I, as root, run this, it works flawlessly. But every night I get an email that samba has failed, indicating that the cron script somehow trips into the else path. How can this be? Am I missing something obvious here? What would be the best way to debug this?

Thanks for your help