2 SPDX-FileCopyrightText: 2022 Frank Doepper
4 SPDX-License-Identifier: FSFAP
10 `konsum` and `arbeite` can execute programs (`-Xprogram`) on reception of a message.
14 The callback is called with the following arguments:
29 Message headers are added through several -h options:
33 Any additional arguments provided by `-a arg` options are appended.
37 Wenn called with `-i` (`--simple`), the callback is called with only the filename
38 as argument. Any additional arguments provided by `-a arg` options are prepended.
42 The arguments provided in normal (old) mode are also available as environment
43 variables in both modes in the callback:
56 And the remaining message properties, too:
68 Message headers, if any, are available as