sysconf -- a sysctl(8)-like utility for managing /etc/rc.conf et. al.

[Devin Teske]

On Mon, 2010-10-11 at 13:33 -0700, Russell Jackson wrote:
> On 10/06/2010 01:45 PM, Devin Teske wrote:
> > Hello fellow freebsd-hackers,
> >
> > Long-time hacker, first-time poster.
> >
> > I'd like to share a shell script that I wrote for FreeBSD system
> > administration.
> >
> > The attached shell script works similar to sysctl(8), but rather than
> > querying or working on sysctl MIBs, it instead works on the /etc/rc.conf
> > (and /etc/rc.conf.local) files.
> >
> 
> Have you looked at textproc/augeas? It's a more generic and extensible 
> way to edit plain text configuration files programmatically using an 
> xpath like syntax.
> 
> Example
> 
> # augtool get /files/etc/rc.conf/sshd_enable
> /files/etc/rc.conf/sshd_enable = YES
> # printf 'set /files/etc/rc.conf/sshd_enable NO\nsave\n' | augtool
> # augtool get /files/etc/rc.conf/sshd_enable
> /files/etc/rc.conf/sshd_enable = NO
> 
> 
> The tool itself is written in C and has no external dependencies. It is 
> taught file grammar via "lenses" which are like formal language specs 
> written in BNF.
> 
> http://augeas.net/
> 


Very cool. However...

$ uname -spr
FreeBSD 8.1-RELEASE-p1 amd64
$ which augtool
$ type augtool
-bash: type: augtool: not found

Not like I'm running bare...

$ pkg_info -Ia | wc -l
     399

Unfortunately, augtool doesn't even appear to be packaged for FreeBSD:

$ pwd
/repos/FreeBSD-8.1/8.1-RELEASE/packages
$ ls | head -4
All
INDEX
MOVED
UPDATING
$ awk -F'|' '/augtool/ {print $1}' < INDEX
$ awk -F'|' '/lexx/ {print $1}' < INDEX
lexxia-0.901
$ awk -F'|' '/yacc/ {print $1}' < INDEX
afay-041111
byaccj-1.14
ebnf2yacc-0.1.1
lemon-1.69
ruby18-byaccr-0.1
showgrammar-1.1
cocor-1.7_1

Not as a binary package nor could I find it in the ports tree.

At this point, we're developing a script that is to be a candidate for
inclusion into the base-distribution of FreeBSD, so any/all use of
augtool is out unless it gets included in the base OS.

Thanks for the heads-up though... looks really powerful.
-- 
Cheers,
Devin Teske

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