I have a command :
nawk 'BEGIN{print srand()}'
which gives the amount of seconds between January 1st 1970 00:00:00 (Unix Epoch) and the present time, to the closest second and I would want to append this time stamp every minute in a file which contains the data below which also has one row added every minute.
Current file output
1955 891
2270 1930
2173 1937
Required output:
1322123179 1955 891
1322123663 2270 1930
where the first column is the Unix Epoch time appended for the particular time the line of data was generated.