[Nutch Wiki] Update of "Upgrading from 0.8.x to 0.9" by NicolásLichtmaier

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The following page has been changed by NicolásLichtmaier:
http://wiki.apache.org/nutch/Upgrading_from_0%2e8%2ex_to_0%2e9

The comment on the change is:
Removed backticks, which are wrong here.

------------------------------------------------------------------------------
  
   * if you ran your fetcher in parsing mode, or if you already parsed the segments, then for each segment you need to first remove directories containing parsed content:
  {{{
-    for i in `segments/2006*`
+    for i in segments/2006* ; do
-    do
        (cd $i && rm -rf crawl_parse parse_data parse_text)
     done
  }}}
   * then you can use 'mergesegs' command, which was modified to perform the conversion of remaining segment parts, e.g. like this:
  {{{
     mkdir converted
-    for i in `segments/2006*`
+    for i in segments/2006* ; do
-    do
        nutch mergesegs converted $i
     done
  }}}
@@ -40, +38 @@

  
   * finally, you will need to re-parse converted segments:
  {{{
-    for i in `converted/*`
+    for i in converted/* ; do
-    do
        nutch parse $i
     done
  }}}