# Command Line Arguments for Launching ADAPTFEKO

ADAPTFEKO is started automatically by RUNFEKO if a continuous (interpolated) frequency range is specified.

The syntax is:
runfeko filename
or
runfeko filename --adaptfeko-options [options]
where the optional argument options in the second line may be:
--version
Output only the version information to the command line and terminate.
--keep-files
All solution files (for example, .pre, .fek, .out) are preserved.
--restart x
Restart an adaptive frequency analysis using results for the frequency points 1...(x-1) obtained in a previous run. (Then the previous run must have used –keepfiles.)