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Date:      Wed, 26 Oct 2005 20:06:28 -0400
From:      Kris Kennaway <kris@obsecurity.org>
To:        Bob Hall <rjhjr@cox.net>, freebsd-questions@freebsd.org
Subject:   Re: Crontab and GPG?
Message-ID:  <20051027000628.GA68638@xor.obsecurity.org>
In-Reply-To: <20051026235103.GA89193@kongemord.krig.net>
References:  <20051025131352.217826@bob> <20051025184502.GA83689@kongemord.krig.net> <20051025190017.GF63163@xor.obsecurity.org> <20051025231057.GA84395@kongemord.krig.net> <20051026075253.GA90196@xor.obsecurity.org> <20051026152328.GA87755@kongemord.krig.net> <20051026163144.GA49942@xor.obsecurity.org> <20051026235103.GA89193@kongemord.krig.net>

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On Wed, Oct 26, 2005 at 07:51:03PM -0400, Bob Hall wrote:
> On Wed, Oct 26, 2005 at 12:31:44PM -0400, Kris Kennaway wrote:
> > On Wed, Oct 26, 2005 at 11:23:29AM -0400, Bob Hall wrote:
> > > On Wed, Oct 26, 2005 at 03:52:53AM -0400, Kris Kennaway wrote:
> > > > On Tue, Oct 25, 2005 at 07:10:57PM -0400, Bob Hall wrote:
> > > > > On Tue, Oct 25, 2005 at 03:00:18PM -0400, Kris Kennaway wrote:
> > > > > > On Tue, Oct 25, 2005 at 02:45:02PM -0400, Bob Hall wrote:
> > > > > > > On Tue, Oct 25, 2005 at 01:13:52PM -0500, Robert Wall wrote:
> > > > > > > > Hello!  I'm attempting to run GPG from cron, and it's not w=
orking.  I can run the script from the command line, and all works perfectl=
y.  When I try to run it from cron, however, it doesn't work.  The crontab =
calls this script, called "pgpdecrypt" with the following crontab line:
> > > > > > > >=20
> > > > > > > > */1    *       *       *       *       root    /bin/bash /e=
tc/pgpdecrypt
> > > > > > > >=20
> > > > > > > > The /bin/bash wasn't originally there; I added it to make s=
ure that the script was using the correct shell.  Still no luck.  Here's th=
e script that it calls:
> > > > > > > >=20
> > > > > > > > echo >> /etc/pgpdecrypt.logger "PGP Decrypter Starting"
> > > > > > >=20
> > > > > > > Take the "/bin/bash" out of your crontab. Put
> > > > > > > 	#!/bin/bash
> > > > > > > at the beginning of your script.
> > > > > >=20
> > > > > > What do you think that will do to help?  It's a NOP, so it can'=
t fix
> > > > > > the problem (which is because of bad assumptions about PATH, pe=
r my
> > > > > > other message).
> > > > >=20
> > > > > Well, I don't know whether "#!" is a NOP or not. It does tell the=
 script
> > > > > which executable to use in executing the script.
> > > >=20
> > > > Yeah, which he was already doing explicitly (see above) ;-)
> > >=20
> > > Which is irrelevant. The fact is that if you put the path at the
> > > beginning of the script, the script will run the same under cron as it
> > > does under the shell you tested it with. If the OP had put "#!/bin/ba=
sh"
> > > at the beginning of the script when he tested it, he would have been
> > > able to debug it without being confused by the fact that it ran under
> > > his shell and not under cron.
> >=20
> > No, this was because his environment was not as he expected it to be
> > when run from cron, as I've explained to you twice.  Just making the
> > NOP change of adding #!/bin/bash when the script is already being run
> > by /bin/bash will not affect the environment.
>=20
> I doubt very much that putting the wrong path into the environmental
> variables is going to help anything.

PATH does not include /usr/local when run from cron, and his script
assumes that it does (it calls gpg not /usr/local/bin/gpg).

kKris
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