NAME

       mhparam - print nmh profile and context components

SYNOPSIS

       mhparam [components] [-all] [-component | -nocomponent] [-version] [-help] [-debug]

DESCRIPTION

       mhparam writes the value of the specified profile component to the standard output separated by newlines.
       Component  name matching is case-insensitive.  If the profile component is not present, the default value
       (or nothing if there is no default) is printed.

       If the switch -component is given, then the component name is displayed along with the profile components
       value.  This can be disabled with the switch -nocomponent.

       If more than one component is specified in the components list, then  the  switch  -component  is  on  by
       default.  If only one component is specified, then the switch -nocomponent is on by default.

       If  -all  is  specified,  then  all  components  in the nmh profile are displayed and other arguments are
       ignored.

       mhparam can provide other information, such as the nmh version  identifier,  the  locations  of  the  nmh
       etcdir  and  libdir  install  directories, all proc settings, and the datalocking method described in the
       mh-profile(5) man page.  Information about the configuration of the nmh installation is  also  available,
       including  the default mail spool locking method.  To test whether the configuration includes support for
       SASL, TLS, and iconv(3), the following commands, respectively, will output a non-null string to  indicate
       support:

            mhparam sasl
            mhparam tls
            mhparam iconv

       Conversely,  no  output means that the specified support is not included.  The -debug switch displays all
       such other information available from mhparam.

       Examples:

            % mhparam path
            Mail

            % mhparam mhlproc
            /usr/lib/mh/mhl

            % mhparam -component Path
            Path: Mail

            % mhparam AliasFile rmmproc
            AliasFile: aliases
            rmmproc: rmmproc

            % mhparam -nocomponent AliasFile rmmproc
            aliases
            rmmproc

            % mhparam path nonexistent context
            Path: Mail
            context: context

            % mhparam version
            nmh-1.6

            % mhparam etcdir
            /etc/nmh

            % mhparam libdir
            /usr/lib/mh

            % mhparam spoollocking
            fcntl

            % mhparam datalocking
            fcntl

            % mhparam sasl
            cyrus_sasl

            % mhparam tls
            tls

            % mhparam iconv
            iconv

       mhparam is also useful in backquoted operations:

            % fgrep cornell.edu `mhpath +`/`mhparam aliasfile`

EXIT STATUS

       mhparam returns the number of components that were not found.

FILES

       $HOME/.mh_profile    The user profile
       or $MH               Rather than the standard profile
       <mh-dir>/context     The user context
       or $MHCONTEXT        Rather than the standard context

PROFILE COMPONENTS

       context:             To determine the context file

SEE ALSO

       mh-profile(5)

DEFAULTS

       `-nocomponent' if only one component is specified
       `-component' if more than one component is specified
       `components' defaults to none

CONTEXT

       None

nmh-1.6                                          March 16, 2014                                     MHPARAM(1mh)