Filtering on log file 2

[dklloyd]

Sorry, I should have explained more explain more on my previous thread.

Every time a record is inserted into the log a Date is entered 1st followed by a line(s) detailing the change.

Some of the less interesting things I don't want to see (including the date that went with the item).

In brief what I want it to convert the following:

Tue Aug 20 08:02:18 2002
Boring data
Tue Aug 20 08:02:18 2002
Boring data
Tue Aug 20 09:00:04 2002
Good data 1
Good data 2
Tue Aug 20 09:00:09 2002
Good data 3
Tue Aug 20 09:00:21 2002
Boring data
Boring data
Tue Aug 20 09:00:23 2002
Good data 4

Into:
Tue Aug 20 09:00:04 2002
Good data 1
Good data 2
Tue Aug 20 09:00:09 2002
Good data 3
Tue Aug 20 09:00:23 2002
Good data 4

The number of lines of data lines between dates can vary. I presume I will have to check for colons on the 14th & 17th column to identify a date?

Thanks again

dklloyd

 

[CaKiwi]

You need to identify something in the date line which will never occur in any other line, like the fact that it begins with the day of the week or, as you suggest, has colons in columns 14 and 17. Here is a solution using the day of the week.

{
  if ($1 ~ /(Sun)|(Mon)|(Tue)|(Wed)|(Thu)|(Fri)|(Sat)/) {
    a = $0
  }
  else {
    if ($0 !~ /(Boring data 1)|(Boring data 2)/) {
      if (length(a) > 0) {
        print a
        a = ""
      }
      print
    }
  }
}

CaKiwi

 

[dklloyd]

Many thanks CaKiwi, that works.

Cheers

David