Hello, in `man 7z` in section SWITCHES it states:
-m{Parameters} Set Compression Method (see /usr/local/share/doc/p7zip/DOC/MANUAL/switches/method.htm for a list of methods) The correct path to the file method.htm is: /usr/local/share/doc/p7zip/DOC/MANUAL/cmdline/switches/method.htm Regards. kodcode