When I use svn diff or git diff it shows lines like:
@@ -1,5 +1,9 @@
What do they mean?
When I use svn diff or git diff it shows lines like: @@ -1,5
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Those are called (c)hunk headers and contain the range information.
They are surrounded by double at signs
@@. They are of the format:where
lis the starting line number andsis the number of lines the change (c)hunk applies to for each respective file. The-indicates the original file and the+indicates the new (modified) file. Note that it not only shows affected lines, but also context lines.The
-1,5is in the original file (indicated by the-). It shows that that first line is the start and 5 affected / context linesThe
+1,9is in the new (modified) file (indicated by the+) and again first line is the start and 9 affected / context lines.More details here: http://en.wikipedia.org/wiki/Diff#Unified_format