> Strftime is a red herring (sorry), I can use and "date" | getline > to generate pretty much any date string I need. > > The issue is more going the other way. tm2sec in awk is quite complex > and hids many pitfalls if you want to do it correctly. > > My problem is parsing logfiles which contain dates in the form > of date(1) / ctime(2). > > I want to graph stuff over time and so I want a monotonically incrementing > number (secs sinc 1/1/70 would be ideal). I have coded this in awk but > for one year leap years break - though not by much.
if the hair is just leap years, the algorithm used by /sys/src/libc/9sys/ctime.c is pretty attractive. the idea is to just loop through the years between given and 1970, and add a day for each leap year encountered. should be easy to do in awk. - erik
