Hi, I am running rtorrent and I was wondering if it is possible for the
system to turn the program off at certain times, and turn it back on at
other times.


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On Fri, 28 Sep 2007 17:21:16 -0400
Peter Smerdon <psmerdon@magma.ca> wrote:

> Sid Arth <sidster802@gmail.com> writes:
>
> > Hi, I am running rtorrent and I was wondering if it is possible for the
> > system to turn the program off at certain times, and turn it back on at
> > other times.
>
> You can probably use use `cron' to achieve this.

I struggled for a while to figure out how to do exactly this, without
success. I believe that cron does not work, since (at least some)
ncurses apps insist on being run from a terminal.

> Peter Smerdon
> psmerdon@magma.ca

Celejar
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On 9/30/07, Celejar <celejar@gmail.com> wrote:
> On Fri, 28 Sep 2007 17:21:16 -0400
> Peter Smerdon <psmerdon@magma.ca> wrote:
>
> > Sid Arth <sidster802@gmail.com> writes:
> >
> > > Hi, I am running rtorrent and I was wondering if it is possible for the
> > > system to turn the program off at certain times, and turn it back on at
> > > other times.
> >
> > You can probably use use `cron' to achieve this.
>
> I struggled for a while to figure out how to do exactly this, without
> success. I believe that cron does not work, since (at least some)
> ncurses apps insist on being run from a terminal.


usually such problems have to do with the differences of the
environment (bash variables) - you can customize the env. of cron to
overcome this problem


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On Sun, 30 Sep 2007 21:17:57 +0300
ndemou@gmail.com wrote:

> On 9/30/07, Celejar <celejar@gmail.com> wrote:
> > On Fri, 28 Sep 2007 17:21:16 -0400
> > Peter Smerdon <psmerdon@magma.ca> wrote:
> >
> > > Sid Arth <sidster802@gmail.com> writes:
> > >
> > > > Hi, I am running rtorrent and I was wondering if it is possible for the
> > > > system to turn the program off at certain times, and turn it back on at
> > > > other times.
> > >
> > > You can probably use use `cron' to achieve this.
> >
> > I struggled for a while to figure out how to do exactly this, without
> > success. I believe that cron does not work, since (at least some)
> > ncurses apps insist on being run from a terminal.
>
>
> usually such problems have to do with the differences of the
> environment (bash variables) - you can customize the env. of cron to
> overcome this problem

I don't currently have rtorrent installed, but can you give a bit more
explanation or a pointer for future reference? What differences in the
environment do you mean? Which variables have to be modified, and to
what values?

Celejar
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On 09/28/2007 05:21 PM, Peter Smerdon wrote:
> Sid Arth <sidster802@gmail.com> writes:
>
>> Hi, I am running rtorrent and I was wondering if it is possible for the
>> system to turn the program off at certain times, and turn it back on at
>> other times.
>
> You can probably use use `cron' to achieve this.

This may to start:
$ man at
and perhaps a script could be run to kill it as well, but I wouldn't
know about graceful exits with that.

Regards,
Ralph


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All,

Even if we solve this by going for an alternative approach as to using
a text based program, we still need a method by which we can run some
curses based application
For this we can use "screen" (man screen)
Open a new terminal and then run the program
After running this program, we can use cron to send
***** kill -STOP <pid>
***** kill -CONT <pid>
change (*****) with the cron timing which seuits you. This way we can
start and stop the program at will.

On Sun, 2007-09-30 at 17:07 -0400, Celejar wrote:
> On Sun, 30 Sep 2007 21:17:57 +0300
> ndemou@gmail.com wrote:
>
> > On 9/30/07, Celejar <celejar@gmail.com> wrote:
> > > On Fri, 28 Sep 2007 17:21:16 -0400
> > > Peter Smerdon <psmerdon@magma.ca> wrote:
> > >
> > > > Sid Arth <sidster802@gmail.com> writes:
> > > >
> > > > > Hi, I am running rtorrent and I was wondering if it is possible for the
> > > > > system to turn the program off at certain times, and turn it back on at
> > > > > other times.
> > > >
> > > > You can probably use use `cron' to achieve this.
> > >
> > > I struggled for a while to figure out how to do exactly this, without
> > > success. I believe that cron does not work, since (at least some)
> > > ncurses apps insist on being run from a terminal.
> >
> >
> > usually such problems have to do with the differences of the
> > environment (bash variables) - you can customize the env. of cron to
> > overcome this problem
>
> I don't currently have rtorrent installed, but can you give a bit more
> explanation or a pointer for future reference? What differences in the
> environment do you mean? Which variables have to be modified, and to
> what values?
>
> Celejar
> --
> mailmin.sourceforge.net - remote access via secure (OpenPGP) email
> ssuds.sourceforge.net - A Simple Sudoku Solver and Generator
>
>
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Registered Linux user: #306349 (counter.li.org)
The box said "Requires Windows 95, NT, or better", so I installed Linux.


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On 10/1/07, Celejar <celejar@gmail.com> wrote:
> On Sun, 30 Sep 2007 21:17:57 +0300
> ndemou@gmail.com wrote:
> > On 9/30/07, Celejar <celejar@gmail.com> wrote:
> > > [...]
> > > I struggled for a while to figure out how to do exactly this, without
> > > success. I believe that cron does not work, since (at least some)
> > > ncurses apps insist on being run from a terminal.
> >
> >
> > usually such problems have to do with the differences of the
> > environment (bash variables) - you can customize the env. of cron to
> > overcome this problem
>
> I don't currently have rtorrent installed, but can you give a bit more
> explanation or a pointer for future reference? What differences in the
> environment do you mean? Which variables have to be modified, and to
> what values?

if you enter the "set" command in bash you get a list of bash
variables that are accessible to all programms that you execute. This
is called "the bash environment" (see [1] for more info). A lot of
programms really need to check the values of some of these variables
to execute. Cron has only a small portion of them set so a lot of
programms fail when run from cron (can't tell if this is your specific
case though)

_____________
[1] http://tldp.org/LDP/Bash-Beginners-G...l/chap_03.html


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On Mon, Oct 01, 2007 at 02:59:41PM +0300, ndemou@gmail.com wrote:
> On 10/1/07, Celejar <celejar@gmail.com> wrote:
> > On Sun, 30 Sep 2007 21:17:57 +0300
> > ndemou@gmail.com wrote:
> > > On 9/30/07, Celejar <celejar@gmail.com> wrote:
> > > > [...]
> > > > I struggled for a while to figure out how to do exactly this, without
> > > > success. I believe that cron does not work, since (at least some)
> > > > ncurses apps insist on being run from a terminal.
> > >

> if you enter the "set" command in bash you get a list of bash
> variables that are accessible to all programms that you execute. This
> is called "the bash environment" (see [1] for more info). A lot of
> programms really need to check the values of some of these variables
> to execute. Cron has only a small portion of them set so a lot of
> programms fail when run from cron (can't tell if this is your specific
> case though)

What if you have cron run su - [user]? That should set up a login
environment.

Doug.


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I know that it's not what you asked but may solve your problem.
I understand that you want to regulate the download time of your torrents
I don't know rtorrent, but there is many that you can schedule download time and
Bandwidth usage per hour, weekday, etc. (eg: Azureus)

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On Mon, 1 Oct 2007 09:26:55 -0400
"Douglas A. Tutty" <dtutty@porchlight.ca> wrote:

> On Mon, Oct 01, 2007 at 02:59:41PM +0300, ndemou@gmail.com wrote:
> > On 10/1/07, Celejar <celejar@gmail.com> wrote:
> > > On Sun, 30 Sep 2007 21:17:57 +0300
> > > ndemou@gmail.com wrote:
> > > > On 9/30/07, Celejar <celejar@gmail.com> wrote:
> > > > > [...]
> > > > > I struggled for a while to figure out how to do exactly this, without
> > > > > success. I believe that cron does not work, since (at least some)
> > > > > ncurses apps insist on being run from a terminal.
> > > >
>
> > if you enter the "set" command in bash you get a list of bash
> > variables that are accessible to all programms that you execute. This
> > is called "the bash environment" (see [1] for more info). A lot of
> > programms really need to check the values of some of these variables
> > to execute. Cron has only a small portion of them set so a lot of
> > programms fail when run from cron (can't tell if this is your specific
> > case though)
>
> What if you have cron run su - [user]? That should set up a login
> environment.

I tried (using at) 'su - username mc' and received a mail stating:

su: must be run from a terminal

> Doug.

Celejar
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On Oct 8, 2007, at 10:23 AM, Celejar wrote:

> On Mon, 1 Oct 2007 09:26:55 -0400
> "Douglas A. Tutty" <dtutty@porchlight.ca> wrote:
>
>> On Mon, Oct 01, 2007 at 02:59:41PM +0300, ndemou@gmail.com wrote:
>>> On 10/1/07, Celejar <celejar@gmail.com> wrote:
>>>> On Sun, 30 Sep 2007 21:17:57 +0300
>>>> ndemou@gmail.com wrote:
>>>>> On 9/30/07, Celejar <celejar@gmail.com> wrote:
>>>>>> [...]
>>>>>> I struggled for a while to figure out how to do exactly this,
>>>>>> without
>>>>>> success. I believe that cron does not work, since (at least
>>>>>> some)
>>>>>> ncurses apps insist on being run from a terminal.
>>>>>
>>
>>> if you enter the "set" command in bash you get a list of bash
>>> variables that are accessible to all programms that you execute.
>>> This
>>> is called "the bash environment" (see [1] for more info). A lot of
>>> programms really need to check the values of some of these variables
>>> to execute. Cron has only a small portion of them set so a lot of
>>> programms fail when run from cron (can't tell if this is your
>>> specific
>>> case though)
>>
>> What if you have cron run su - [user]? That should set up a login
>> environment.
>
> I tried (using at) 'su - username mc' and received a mail stating:
>
> su: must be run from a terminal

I missed most of this thread, so this may not be what you're looking
for, but has anyone suggested "rungetty", yet?

Package: rungetty
State: not installed
Version: 1.2-10
Priority: optional
Section: admin
Maintainer: Gerfried Fuchs <alfie@debian.org>
Uncompressed Size: 77.8k
Depends: libc6 (>= 2.3.6-6)
Description: minimal console getty that can run any process
rungetty might be the getty you were looking for. It is able to run any
program, not just login. If a different program than login is used it
usually
is run as nobody:nogroup, or the user/group specified on the
commandline.
rungetty can even be configured to autologin, under certain
circumstances. See
the manual page for more information.
You have to change some lines in /etc/inittab for having any effect
after
installing the package. rungetty is based on mingetty and therefore not
suitable for serial use.





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On Mon, 8 Oct 2007 10:33:53 -0700
David Brodbeck <brodbd@u.washington.edu> wrote:

>
> On Oct 8, 2007, at 10:23 AM, Celejar wrote:
>
> > On Mon, 1 Oct 2007 09:26:55 -0400
> > "Douglas A. Tutty" <dtutty@porchlight.ca> wrote:

[snip]

> >> What if you have cron run su - [user]? That should set up a login
> >> environment.
> >
> > I tried (using at) 'su - username mc' and received a mail stating:
> >
> > su: must be run from a terminal
>
> I missed most of this thread, so this may not be what you're looking
> for, but has anyone suggested "rungetty", yet?

[snip]

Thanks; we're looking for a way to run /control ncurses apps
non-interactively, e.g. via at or cron. Does rungetty for this?

Celejar
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On 9/30/07, Celejar <celejar@gmail.com> wrote:
> I struggled for a while to figure out how to do exactly this, without
> success. I believe that cron does not work, since (at least some)
> ncurses apps insist on being run from a terminal.

Lets get back to first principles then.

How does a curses app know if its being run from a terminal? I can't
read source and I don't have curses book handy so I'll guess:

TERM=

if it can look up that term in termcap/terminfo to see how to draw?

The value of tty?

Perhaps without an actual tty-type device it can't work?

---

If you do your at su - (I forget the syntax) command but have it echo
the env to a file, do you get a TERM set?

Perhaps create a script that sets TERM and then runs mc. Then have at
run that script?

Doug.


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