"decode_secrets: Error opening environment file '/proc/sys/urlader/environment'."

[BlackMage2]

the decoder cant read a export file from a FB7530 164.07.21. Why? And where i can specify the password for the export file?
when i run "./decoder.x86_64 decode_secrets ../../../../Downloads/FRITZ.Box\ 7530\ 164.07.21_13.05.22_1650.export" , reports the script:
decode_secrets: Error opening environment file '/proc/sys/urlader/environment'.

[PeterPawn]

Try decoder --help first.

There you should find the line

decode_export         - decrypt a FRITZ!OS export file

and taking this hint into account it's obviously, that you've used a wrong call.

Now try decoder decode_export --help ... this will reveal the "secret":

Usage:

    decode_export [ options ] [ -- ] [ password | serial maca ] [ [ < ] input-file ]

Supported options are:

-t, --tty              - don't quit execution, if STDIN is connected to a terminal device
-a, --alt-env filename - use an alternative source for the 'urlader environment'
-c, --checksum         - re-compute (and replace) the checksum for the provided export file, after
                         the cipher-text values were replaced with the corresponding clear-text
-l, --low-memory       - do not try to consolidate input data into a single buffer
-b, --block-size size  - read input data in blocks of the specified size
-v, --verbose          - show additional information on STDERR
-q, --quiet            - suppress any error messages on STDERR
-s, --strict           - treat warnings as errors and exit
-h, --help             - show this information (on STDOUT) and exit
-V, --version          - show version (on STDOUT) and exit

(and more explanations may be found there)

HTH

PS: Due to this is not really an "issue" (this means "a problem with the software", not "I don't know, how to use it."), so I'll convert this to a discussion thread.