Hi, apparently (http://www.commandlinefu.com/commands/view/7110/monitor-a-file-with-tail-with-timestamps-added) date supports -I switch, but it's undocumented.
I found it in sources, and it seems to be related to iso format, but still - adding it to documentation would be nice. Best regards, depesz -- Linkedin: http://www.linkedin.com/in/depesz / blog: http://www.depesz.com/ jid/gtalk: dep...@depesz.com / aim:depeszhdl / skype:depesz_hdl / gg:6749007