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Maybe you were just too quick when looking. After I posted, I immediately noticed an error in my script and edited again. This took perhaps one minute. If you have managed to read my post during this...

The part inside the then clause in your script is different from what I've posted. That's why it doesn't work.

More like this:


find .... >$FILE
[[ -f saved.txt ]] || touch saved.txt
if ! cmp $FILE saved.txt
then
[[ -s $FILE ]] && mail ... <$FILE
cp $FILE saved.txt
fi

Don't do the exec stuff. Separate your task into two scripts.

One is calculating the message to be sent by email, but it does not actually send the mail, but writing the information to be sent to...

You could store the output which has been mailed once in a certain file, and always compare the contents of the new output (which would be mailed) and the old one (using a tool such as cmp), and only...