interface_build {
    m.dem.extract 0
    {Extracts USGS Digital Elevation Model (DEM) data from 1/2-inch magnetic tape.}
    {entry input {Input device or file:} 0 file}
    {entry output {Output raster map (examine only if none specified):} 0 raster}
    {entry blocksize {Blocksize of tape data [10240]:} 0 ""}
    {entry start {First file to look at [1]:} 0 ""}
    {entry end {Last file to look at [999999]:} 0 ""}
}