For convenience, functions in the Rsagacmd package create temporary files if any outputs for a SAGA-GIS tool are not specified as arguments. Temporary files in R are automatically removed at the end of each session. However, when dealing with raster data, these temporary files potentially can consume large amounts of disk space. These temporary files can be observed during a session by using the saga_show_tmpfiles function, and can be removed using the saga_remove_tmpfiles function.
saga_show_tmpfiles()returns the file names of the files in the temp directory that have been generated by Rsagacmd. Note this list of files only includes the primary file extension, i.e. '.shp' for a shapefile without the accessory files (e.g. .prj, .shx etc.).
if (FALSE) { # \dontrun{
# Show all temporary files generated by Rsagacmd
saga_remove_tmpfiles(h = 0)
} # }