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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
I used to use the Firefox "View page info" feature a lot to determine how stale the web page I was looking at was. Now that I use mostly Chrome I miss that feature, so here is a command line alternative using wget. The -S says to display the server response, the --spider says to not download any files/pages, just fetch the header. The output goes to stderr, so to grep it you use 2>&1 to combine the stderr stream with stdout, the pipe that to grep for Last-Modified.
You can use curl instead if you have it installed, like this:
curl --head -s http://osswin.sourceforge.net | grep Mod
There is 1 alternative - vote for the best!
I is for headers only
s is for silence
curl -Is outputs ONLY headers the pipe and grep is to filter them to Modified only..
If you can do better, submit your command here.
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