# Additional Features

### Errors and Warnings

logr will write all errors and warnings to the log. Errors and warnings are both written at the point they are encountered.

### Message File *.msg

If errors or warnings are generated, they will also be written to a separate file called a message file. The message file has the same name as the log, but with a .msg extension. The purpose of the message file is so that errors and warnings that occur during execution of the script can be observed from the file system. The presence or absence of the .msg file will indicate whether or not the program ran clean.

### Log subdirectory /log

By default, `logr` prints the log to a subdirectory named log. If that subdirectory does not exist, the `log_open()` function will create it. The default behavior can be overridden by setting the `logdir` parameter on the `log_open()` function to `FALSE`.

Next: Global Options