Options in svnlook are global, just as they are in svn and svnadmin; however, most options apply to only one subcommand since the functionality of svnlook is (intentionally) limited in scope:
Causes svnlook changed to show detailed copy source information.
Prevents svnlook diff from printing differences for deleted files. The default behavior when a file is deleted in a transaction/revision is to print the same differences that you would see if you had left the file but removed all the content.
Prevents svnlook diff from printing differences for added files. The default behavior when you add a file is to print the same differences that you would see if you had added the entire contents of an existing (empty) file.
Specifies a particular revision number that you wish to examine.
Operates on a revision property instead of a property specific to a file or
directory. This option requires that you also pass a revision with
Specifies a particular transaction ID that you wish to examine.
Shows the filesystem node revision IDs for each path in the filesystem tree.