To change the number of previous commands and results stored:
Choose DTerm > Preferences... from the menu bar, then select “General.”
DTerm keeps a configurable-length history of previous commands and their results. You can navigate back and forth through this history using the left- and right-facing triangles at the top of the results area, or their keyboard shortcuts, command-option-left- or right-arrow. This allows you to reference previous results when typing a new command, or reuse parts of an old command itself.
Choose DTerm > Preferences... from the menu bar, then select “General.”
Old commands and results are only discarded when the DTerm window closes. DTerm will keep an unlimited amount of history within a single session.
Commands that are still running will never be discarded, no matter how old. More recent (but completed) commands will be discarded if necessary to try to meet your preferences for the history length.