svn log --verbose -r <rev>
svn log --verbose -r 63
Show difference by comparing actual files. For example, show line by line difference between revision 64 against 63.
svn diff -r<rev-of-commit>:<rev-of-commit - 1>
svn diff -r64:63
Show the actual file version at the specific revision number:
svn cat -r <rev> <file> | less
svn cat -r 64 ./some_file.php | less