readmsg --version (return code: 0)
readmsg (GNU Mailutils) 3.1.1
Copyright (C) 2007-2016 Free Software Foundation, inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
readmsg --help (return code: 0)
Usage: readmsg [OPTION...]
GNU readmsg -- print messages.
-a, --show-all-match print all messages matching pattern, not only the
first
-d, --debug display debugging information
-f, --folder=FOLDER folder to use
-h, --header display entire headers
-n, --no-header exclude all headers
-p, --form-feeds output formfeeds between messages
-w, --weedlist=LIST list of header names separated by whitespace or
commas
Global debugging settings
--debug-level=LEVEL set Mailutils debugging level
--debug-line-info show source info with debugging messages
Configuration handling
--config-file=FILE load this configuration file; implies --no-config
--config-lint check configuration file syntax and exit
--config-verbose verbosely log parsing of the configuration files
--no-config do not load site and user configuration files
--no-site-config do not load site-wide configuration file
--no-user-config do not load user configuration file
--set=PARAM=VALUE set configuration parameter
Informational options
--config-help show configuration file summary
--show-config-options show compilation options
-?, --help give this help list
--usage give a short usage message
-V, --version print program version
Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.
Report bugs to <bug-mailutils@gnu.org>.
GNU Mailutils home page: <http://mailutils.org>
General help using GNU software: <http://www.gnu.org/gethelp/>