I have log.txt with sample output like these:
...
10-Feb-2022 15:15:14.099 lorem
10-Feb-2022 15:15:15.133 ipsum
10-Feb-2022 15:15:16.233 dolor
...
I expect the output of filtered log.txt will be
...
1644480914 lorem
1644480915 ipsum
1644480916 dolor
...
I have figured out how to convert date string to timestamp
date --date='10-Feb-2022 15:15:14.099' +"%s"
Output:
1644480914
My brain still don't get it how to apply that date command to log.txt.
Also How do I pipeline that date command?
printf "10-Feb-2022 15.15.17.012 water" | date --date=<what must i put here?> + "%s"
I expect the output of pipelined command is same, the different is without disturb other column, that is 1644480917 water