Re: When was '-z' added to tcpdump?

[kielaka <kielaka () vp pl>]

> Hello there,
>
> I would like to use the -z (*postrotate-command*) flag to easily gzip a
> pcap after a file rotation but it appears my current version (tcpdump 3.9.4
> / libpcap 0.9.4) does not support this. I was wondering what version first
> incorporated this flag? The official tcpdump changelog (
> http://www.tcpdump.org/tcpdump-changes.txt) doesn't appear to have any note
> on this feature's introduction either. I would gladly appreciate it if
> somebody could provide details on when exactly this feature was added.
>
> Thank you.
>
> Regards,
> Osman Surkatty
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Tcpdump version 4.1.1 manual :
 -z     Used  in  conjunction  with  the -C or -G options, this will make tcpdump run " command file " where file is 
the savefile being
              closed after each rotation. For example, specifying -z gzip or -z bzip2 will compress each savefile using 
gzip or bzip2.
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