<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Ok I think I got my answer to that question. We can get it through "-d fixed”.<div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Feb 27, 2017, at 9:22 PM, Marzieh Babaeianjelodar <<a href="mailto:babaeim@clarkson.edu" class="">babaeim@clarkson.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Thanks it was very helpful.</div><div class=""><br class=""></div><div class="">I have another question. What if we change the file and update it and we want to retrieve the old file with an older version? Can we just run the command with the version name?</div><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Feb 27, 2017, at 8:13 PM, Nick Briggs <<a href="mailto:nicholas.h.briggs@gmail.com" class="">nicholas.h.briggs@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Run "ndncatchunks -h" for the help text... most of the tools have -h or --help options.<div class=""><br class=""></div><div class="">From the help for ndncatchunks --</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>"-d" does version discovery and takes argument "fixed" or "iterative".</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>"-v" turns on verbose output but doesn't affect the NDN packets sent vs. not having "-v".</div><div class="">Each time you publish data with ndnputchunks it will create a new version -- the new version number is what gets printed with the "-p" option. The individual packets that compose what you think of as a "file" are going to be named as (using your example below)</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>/localhost/demo/gpl3/<version#>/<chunk #></div><div class="">where the version and chunk components are binary coded (plus a leading marker) representations of the values.</div><div class=""><br class=""></div><div class="">Look at the documentation (or look at the source for the command line parsing...) for how to turn on packet logging for the NDN forwarding daemon -- then you can see exactly what's going on at the packet level when you run ndnputchunks/ndncatchunks (or any other NDN command that's talking to the forwarding daemon)</div><div class=""><br class=""></div><div class="">-- Nick Briggs</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div class=""><blockquote type="cite" class=""><div class="">On Feb 27, 2017, at 4:55 PM, Marzieh Babaeianjelodar <<a href="mailto:babaeim@clarkson.edu" class="">babaeim@clarkson.EDU</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">What is the difference between these two commands:<div class=""><pre style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 13.600000381469727px; margin-top: 0px; margin-bottom: 16px; line-height: 1.45; word-wrap: normal; padding: 16px; overflow: auto; background-color: rgb(247, 247, 247); border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; color: rgb(51, 51, 51);" class=""><code style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0px; margin: 0px; background-color: transparent; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; word-break: normal; border: 0px; display: inline; overflow: visible; line-height: inherit; word-wrap: normal;" class="">ndncatchunks -d iterative ndn:/localhost/demo/gpl3
</code></pre></div><div class=""><code style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0px; margin: 0px; background-color: transparent; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; word-break: normal; border: 0px; display: inline; overflow: visible; line-height: inherit; word-wrap: normal;" class=""><br class=""></code></div><div class=""><div class=""><pre style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 13.600000381469727px; margin-top: 0px; margin-bottom: 16px; line-height: 1.45; word-wrap: normal; padding: 16px; overflow: auto; background-color: rgb(247, 247, 247); border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; color: rgb(51, 51, 51);" class=""><code style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0px; margin: 0px; background-color: transparent; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; word-break: normal; border: 0px; display: inline; overflow: visible; line-height: inherit; word-wrap: normal;" class="">ndncatchunks -v ndn:/localhost/demo/gpl3
</code></pre></div></div><div class=""><code style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0px; margin: 0px; background-color: transparent; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; word-break: normal; border: 0px; display: inline; overflow: visible; line-height: inherit; word-wrap: normal;" class=""><br class=""></code></div></div>_______________________________________________<br class="">Ndn-interest mailing list<br class=""><a href="mailto:Ndn-interest@lists.cs.ucla.edu" class="">Ndn-interest@lists.cs.ucla.edu</a><br class=""><a href="http://www.lists.cs.ucla.edu/mailman/listinfo/ndn-interest" class="">http://www.lists.cs.ucla.edu/mailman/listinfo/ndn-interest</a><br class=""></div></blockquote></div><br class=""></div></div></div></blockquote></div><br class=""></div></div></blockquote></div><br class=""></div></body></html>