2.3 - Input Files
Every option except -IF (-InputFile) may be supplied either on the command line or in an input file. -IF is itself only valid on the command line. A single dsarch invocation may combine command-line options with one or more input files. If the only options are inside a single input file, the -IF prefix may be omitted. See the description of -IF in Section 5.2 for the input-file format (comments, action/mode markers, single-value assignments, and tabular multi-value assignments, including delimiter overrides).
As a safeguard against operating on the wrong dataset, input file names must begin with the dataset number in the format ‘dNNNNNN.*’, where ‘*’ matches one or more valid filename characters.