These keywords are expanded wherever they appear, which includes log messages. Id to Log. You can also use RCS keywords to embed information about the source in your object code. Pulling Logs You can directly access revision information with RCS's rlog command. Most of the data it contains should by now be familiar.
Several flags are available to control rlog output.
Or, if you wanted to see all the log entries for a specific author, e.g. Smith, you would use -wsmith . Because the date information contains spaces, it must be enclosed in a double quotes. Needless to say, you can combine dates with times to further narrow down the output. While this may seem an exotic feature in the context of our trivial example, when you have numerous developers racing to meet a production deadline, and the application that ran smoothly last night has been crashing since 10 o'clock this morning, the -d flag can help you narrow down the search for the programmer whose checkin triggered the bug. The last of the basic original RCS commands, rcs , enables you to control access to the repository as well as revise the RCS file when necessary.