update-ref: -d flag and ref creation safety.

diff --git a/Documentation/tutorial-2.txt b/Documentation/tutorial-2.txt
index 82c692254e36e7aff597407633baeb2b5ee91a05..42b6e7d7d2bbb24d96f29635967945f516b25e15 100644 (file)
--- a/Documentation/tutorial-2.txt
+++ b/Documentation/tutorial-2.txt
@@ -136,7 +136,7 @@ The "tree" object here refers to the new state of the tree:
 ------------------------------------------------
 $ git ls-tree d0492b36
 100644 blob a0423896973644771497bdc03eb99d5281615b51    file.txt
-$ git cat-file commit a0423896
+$ git cat-file blob a0423896
 hello world!
 ------------------------------------------------
 
@@ -244,6 +244,7 @@ $ git ls-files --stage
 $ git cat-file -t 513feba2
 blob
 $ git cat-file blob 513feba2
+hello world!
 hello world, again
 ------------------------------------------------
 
@@ -367,7 +368,7 @@ in the index file is identical to the one in the working directory.
 In addition to being the staging area for new commits, the index file
 is also populated from the object database when checking out a
 branch, and is used to hold the trees involved in a merge operation.
-See the link:core-tutorial.txt[core tutorial] and the relevant man
+See the link:core-tutorial.html[core tutorial] and the relevant man
 pages for details.
 
 What next?