In order to reassemble the file, Keep stores a *collection* data block which lists in sequence the data blocks that make up the original file. A collection data block may store the information for multiple files, including a directory structure.
-In this example we will use @c1bad4b39ca5a924e481008009d94e32+210@ which we added to Keep in "the first Keep tutorial":{{ site.baseurl }}/users/tutorial/tutorial-keep.html. First let us examine the contents of this collection using @arv keep get@:
+In this example we will use @c1bad4b39ca5a924e481008009d94e32+210@ which we added to Keep in "the first Keep tutorial":{{ site.baseurl }}/user/tutorials/tutorial-keep.html. First let us examine the contents of this collection using @arv keep get@:
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<pre><code>~$ <span class="userinput">arv keep get c1bad4b39ca5a924e481008009d94e32+210</span>
</code></pre>
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-The command @arv keep get@ fetches the contents of the locator @c1bad4b39ca5a924e481008009d94e32+210@. This is a locator for a collection data block, so it fetches the contents of the collection. In this example, this collection consists of a single file @var-GS000016015-ASM.tsv.bz2@ which is 227212247 bytes long, and is stored using four sequential data blocks, <code>204e43b8a1185621ca55a94839582e6f+67108864</code>, <code>b9677abbac956bd3e86b1deb28dfac03+67108864</code>, <code>fc15aff2a762b13f521baf042140acec+67108864</code>, <code>323d2a3ce20370c4ca1d3462a344f8fd+25885655</code>.
+The command @arv keep get@ fetches the contents of the collection @c1bad4b39ca5a924e481008009d94e32+210@. In this example, this collection includes a single file @var-GS000016015-ASM.tsv.bz2@ which is 227212247 bytes long, and is stored using four sequential data blocks, @204e43b8a1185621ca55a94839582e6f+67108864@, @b9677abbac956bd3e86b1deb28dfac03+67108864@, @fc15aff2a762b13f521baf042140acec+67108864@, and @323d2a3ce20370c4ca1d3462a344f8fd+25885655@.
-Let's use @arv keep get@ to download the first datablock:
+Let's use @arv keep get@ to download the first data block:
notextile. <pre><code>~$ <span class="userinput">cd /scratch/<b>you</b></span>
/scratch/<b>you</b>$ <span class="userinput">arv keep get 204e43b8a1185621ca55a94839582e6f+67108864 > block1</span></code></pre>
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Notice that the block identifer <code>204e43b8a1185621ca55a94839582e6f+67108864</code> consists of:
-* the md5 hash @204e43b8a1185621ca55a94839582e6f@ which matches the md5 hash of @block1@
-* a size hint @67108864@ which matches the size of @block1@
+* the md5 hash of @block1@, @204e43b8a1185621ca55a94839582e6f@, plus
+* the size of @block1@, @67108864@.