mhparam.rf

早期freebsd实现

.\"	@(MHWARNING)
.\" @(#)$Id: mhparam.rf,v 1.2 1992/11/16 22:27:09 jromine Exp $
.SC MHPARAM 1
.NA
mhparam \- print MH profile components
.SY
mhparam
\%[components]
\%[-all]
\%[-component] \%[-nocomponent]
\%[\-help]
.DE
\fIMhparam\fR writes the value of the specified profile component to
the standard output separated by newlines.  If the profile component
is not present, the default value (or nothing if there is no default)
is printed.

If more than one component is specified in the `components' list, the component value is
preceded by the component name.  If `\-component' is specified, the
component name is displayed even when only one component is specified.
If `\-nocomponent' is specified, the component name is not displayed
even when more than one component is specified.

If `\-all' is specified, all components if the MH profile are
displayed and other arguments are ignored.

Examples:

.nf
.ta \w'AliasFile:'u+2n
.in +.5i
% mhparam path
Mail

% mhparam mhlproc
@(MHETCPATH)/mhl

% mhparam \-component path
Path:	Mail

% mhparam AliasFile rmmproc
AliasFile:	aliases
rmmproc:	rmmproc

% mhparam \-nocomponent AliasFile rmmproc
aliases
rmmproc
.in -.5i
.fi

\fIMhparam\fR is also useful in back\-quoted operations:

.nf
.in +.5i
% fgrep cornell.edu `mhpath +`/`mhparam aliasfile`

.in -.5i
.fi
.Fi
^$HOME/\&.mh\(ruprofile~^The user profile
.Sa
mh-profile\|(5)
.De
`\-nocomponent' if only one component is specified
`\-component' if more than one component is specified
.Ds
`components' defaults to none
.Co
None
.En