svnlook log — Print the log message, followed by a newline character.
svnlook log REPOS_PATH
Print the log message.
--revision (-r) REV --transaction (-t) ID
--revision
-r
REV
--transaction
-t
ID
This shows the log output for revision 40 in our sample repository:
$ svnlook log -r 40 /var/svn/repos/ Rearrange lunch.