Robert Moskowitz:
>
> On 01/10/2013 04:01 PM, Wietse Venema wrote:
> > With the option to edit master.cf will come new opportunities
> > to destroy a configuration.
> >
> > Below is a first design for a "backup before edit" option. If no
> > command is configured, then no backup will be made. If the backup
> > command fails, then the postconf command will not edit the file.
> >
> > Wietse
> >
> > postconf_backup_command (default: empty)
> >
> > Optional external command that the postconf(1) command executes
> > before it attempts to modify the main.cf or master.cf file. The
> > macro "$file" is replaced by the absolute pathname of the file.
> >
> > Note: the command is subject to $name expansion. Specify "$$"
> > to produce a single "$" character.
> >
> > Example:
> >
> > # This reuses the destination name when multiple edits are made
> > # within the same second.
> > backup_command = cp -p $file $file.saved.`date +%Y%m%d-%H%M%S`
>
> I seem to recall that multi-line options are not supported and will not
> be supported? And in master.cf, I see a lot of multi-line entries for
This thread is about backing up main.cf/master.cf files, to recover
from mistakes.
If you have a detailed question about some other Postfix feature
then you should start a new thread.
Wietse
