## Display Device Driver Reference for OS/2

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### Specifying the DTT Log File Name

A path and file name for the DTT log file can be specified on the DTT command-line using the -F option. If no log file name option is given on the command line, the default file name, DTT_LOG, is used in the current directory.

If a log file does not exist when DTT is started, the log file is created automatically. If the log file does exist, the new log is appended to the existing log file.