Initial data commit

Task/Here-document/UNIX-Shell/here-document-1.sh

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+#!/bin/sh
+cat << ANARBITRARYTOKEN
+The river was deep but I swam it, Janet.
+The future is ours so let's plan it, Janet.
+So please don't tell me to can it, Janet.
+I've one thing to say and that's ...
+Dammit. Janet, I love you.
+ANARBITRARYTOKEN

Task/Here-document/UNIX-Shell/here-document-2.sh

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+cat << EOF
+Here documents do parameter and command substitution:
+ * Your HOME is $HOME
+ * 2 + 2 is `expr 2 + 2`
+ * Backslash quotes a literal \$, \` or \\
+EOF

Task/Here-document/UNIX-Shell/here-document-3.sh

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+if true; then
+    cat <<- EOF
+    The <<- variant deletes any tabs from start of each line.
+    EOF
+fi

Task/Here-document/UNIX-Shell/here-document-4.sh

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+cat << 'TOKEN'
+If TOKEN has any quoted characters (like 'TOKEN', "TOKEN" or \TOKEN),
+then all $ ` \ in the here document are literal characters.
+
+$PATH \$PATH `shutdown now`
+TOKEN

Task/Here-document/UNIX-Shell/here-document-5.sh

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+echo '
+In any unix shell, you specify a text block and can use all whitespace like
+  (spaces) &    (tab) in it, by using single quotes.
+As mentioned above, a Unix "here document" is a type of redirection.
+In a literal Bash here document, the starting token must be
+quoted, but the end token must not, so they are not the same, which does not
+conform to the task definition.
+'