Hi,
I have tried to develop a sed script that inserts date and time in the third field in the first and second row below. The third row is an example and it shows where the date and time should be inserted. The script should check if the row already has date and time in the third field and if it is missing it should insert date and time.

1 106 texttexttext texttextexttext
4 1023 texttext texttext texttext

9 1234 07-02-05 16:06:46:743 texttext textextext text

Here is the script I have managed to develop so far. The script just insert date and time in the beginning of a line that miss the date and time and it will not be inserted in the third field. I would apreciate help to get date and time inserted correctly.

sed '/[0-9][0-9]*[0-9]* [0-9][0-9]*[0-9]*[0-9]* [0-9][0-9]-[0-9][0-9]-[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]:[0-9][0-9][0-9]/!s/^/07-02-05 16:06:46:743: &/g'


/ Richard