add and substract dates in awk

[Shelllearner]

Hi, I am working on a awk program and I have to get current time (which I am doing with date) and add and substract 4 days in order to shearch those dates in a file (searching in a file is not problem).
I really appreciate your help!!!

 

[feherke]

Hi

If you have [tt]gawk[/tt], is quite easy :

[blue]master #[/blue] awk -vd=[green][i]100[/i][/green] 'BEGIN{print "now is",strftime("%Y-%m-%d %H:%M:%S",systime());print d,"days is",strftime("%Y-%m-%d %H:%M:%S",systime()+d*24*60*60)}'
now is 2006-10-20 10:06:56
100 days is 2007-01-28 09:06:56

[blue]master #[/blue] awk -vd=[green][i]-100[/i][/green] 'BEGIN{print "now is",strftime("%Y-%m-%d %H:%M:%S",systime());print d,"days is",strftime("%Y-%m-%d %H:%M:%S",systime()+d*24*60*60)}'
now is 2006-10-20 10:06:59
-100 days is 2006-07-12 10:06:59

Feherke.

http://rootshell.be/~feherke/