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MHPARAM(1mh) MHPARAM(1mh)
NAME
mhparam - print nmh profile and context components
SYNOPSIS
mhparam [-help] [-version] [components] [-all] [-component | -nocomponent] [-debug]
DESCRIPTION
mhparam writes the value of the specified profile component to the standard output, sepa-
rated 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 argu-
ments are ignored.
mhparam can provide other information, such as the nmh version identifier, the locations
of the nmh bindir, libexecdir, etcdir, and docdir 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,
iconv(3), and oauth, the following commands, respectively, will output a non-null string
to indicate support:
mhparam sasl
mhparam tls
mhparam iconv
mhparam oauth
Conversely, no output means that the specified support is not included. The -debug switch
displays all such other information available from mhparam.
Note that the internal libdir component has been replaced by libexecdir. The old form is
deprecated and will be removed in a future release.
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-1.7.1
% mhparam etcdir
/etc/nmh
% mhparam libexecdir
/usr/lib/mh
% mhparam spoollocking
fcntl
% mhparam datalocking
fcntl
% mhparam sasl
cyrus_sasl
% mhparam tls
tls
% mhparam iconv
iconv
% mhparam oauth
oauth
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, but limits the return value
to 120 to avoid ambiguity, e.g. 127 is used by shells to indicate `command not found', and
256 would wrap to 0, falsely indicating success.
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-1.7.1 2017-02-18 MHPARAM(1mh)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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