mhparam man page

mhparam — print nmh profile and context components


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


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.


% mhparam path

% mhparam mhlproc

% mhparam -component Path
Path: Mail

% mhparam AliasFile rmmproc
AliasFile: aliases
rmmproc: rmmproc

% mhparam -nocomponent AliasFile rmmproc

% mhparam path nonexistent context
Path: Mail
context: context

% mhparam version

% mhparam etcdir

% mhparam libdir

% mhparam spoollocking

% mhparam datalocking

% mhparam sasl

% mhparam tls

% mhparam 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.


$HOME/.mh_profileThe user profile
or $MHRather than the standard profile
<mh-dir>/contextThe user context
or $MHCONTEXTRather than the standard context

Profile Components

context:To determine the context file

See Also



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



Referenced By

mhfixmsg(1), mh-mime(7), mhshow(1), nmh(7), send(1).

Explore man page connections for mhparam(1).

nmh 1.6 March 16, 2014