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 Forum index » Advanced Topics » Additional Software (PETs, n' stuff) » Desktop
Pschedule 1.1.3 - Task on time
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jake_take

Joined: 09 Jun 2008
Posts: 16
Location: Japan
PostPosted: Fri 12 Sep 2008, 21:37    Post subject:  
I wonder why Pschedule data should be saved in /var/spool/cron/crontabs? Why not in /etc, for example? No files in /var is saved in pup_save, and the data in /var/spool/cron/crontabs is evaporated in next boot. So I must write the same task schedule in every boot.

To avoid this , I modified Pschedule files so that Pschedule data is saved in /etc and loaded there. But this is not easy for any begginers.

Thank you.
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ttuuxxx


Joined: 05 May 2007
Posts: 10720
Location: Ontario Canada,Sydney Australia
PostPosted: Fri 12 Sep 2008, 23:00    Post subject:  
delete
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http://samples.mplayerhq.hu/A-codecs/ <-- Codec Test Files
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Last edited by ttuuxxx on Sat 13 Sep 2008, 01:06; edited 1 time in total
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jake_take

Joined: 09 Jun 2008
Posts: 16
Location: Japan
PostPosted: Fri 12 Sep 2008, 23:13    Post subject:  
Thank you, ttuuxxx. I do so.
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jake_take

Joined: 09 Jun 2008
Posts: 16
Location: Japan
PostPosted: Fri 12 Sep 2008, 23:20    Post subject:  
Hi,ttuuxxx, again. I'm very confused. The link you wrote is here!
I was returned to the same thread. Is this Pschedule thread? or not?
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ttuuxxx


Joined: 05 May 2007
Posts: 10720
Location: Ontario Canada,Sydney Australia
PostPosted: Sat 13 Sep 2008, 01:09    Post subject:  
jake_take wrote:
Hi,ttuuxxx, again. I'm very confused. The link you wrote is here!
I was returned to the same thread. Is this Pschedule thread? or not?


Sorry Jake I have the flu, Heatstroke, and a couple of pulled chest muscles, I'm on a lot of meds, A bit fuzzy. My mistake, I bet it made you feel like you were on the "Twilight Zone"
lol
ttuuxxx
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http://samples.mplayerhq.hu/A-codecs/ <-- Codec Test Files
http://html5games.com/ <-- excellent HTML5 games Smile

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zigbert


Joined: 29 Mar 2006
Posts: 5290
Location: Valåmoen, Norway
PostPosted: Sat 13 Sep 2008, 09:54    Post subject:  
I have tested Pschedule 0.6 in Puppy 4.1 beta, and everything seems fine. /var/spool/cron/crontabs/root/ are not deleted after reboot. I remember there were some discussion over including /var/ or not, so maybe you're just unlucky with your Puppy version.

Sigmund
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jake_take

Joined: 09 Jun 2008
Posts: 16
Location: Japan
PostPosted: Sun 14 Sep 2008, 06:33    Post subject:  
I boot Puppy from USB, so I guess this trouble may be occured.
In frugal install I recognized the Pschedule data is saved and not deleted. I have not tested Puppy 4.1beta, but both scripts of /etc/rc.d/rc.shutdown and /usr/sbin/snapmergepuppy don't seem to be changed from Puppy 4.02 or from Puppy 4.00 (k-2.6.21.7), so I guess the difference of booting method make this problem.
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zigbert


Joined: 29 Mar 2006
Posts: 5290
Location: Valåmoen, Norway
PostPosted: Sun 14 Sep 2008, 06:49    Post subject:  
jake_take
Ok, I see.... This is already on my wish-list for Pscedule, since /etc seems to be the crontab standard out there. But it has not that high priority, so it will not be fixed in the near future. Sorry!

Sigmund
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jake_take

Joined: 09 Jun 2008
Posts: 16
Location: Japan
PostPosted: Mon 15 Sep 2008, 08:30    Post subject:  
I modified as follows.

1) the tail part of /root/.xinitrc,

crond
#exec $CURRENTWM
==>
Code:
cp -r -f /etc/crontabs /var/spool/cron
crond
#exec $CURRENTWM

("cp -r -f /etc/crontabs /var/spool/cron" added before "crond")

2) line 143 of /usr/local/pschedule/func_new,

killall -q crond; crond #restart cron
==>
Code:
cp -r -f /var/spool/cron/crontabs /etc
killall -q crond; crond #restart cron

("cp -r -f /var/spool/cron/crontabs /etc" added before "killall -q crond; crond")

3) line 31 of /usr/local/pschedule/func_delete,

killall -q crond; crond #restart cron
==>
Code:
cp -r -f /var/spool/cron/crontabs /etc
killall -q crond; crond #restart cron

("cp -r -f /var/spool/cron/crontabs /etc" added before "killall -q crond; crond")

The Task Command is saved in /etc as well as in /var/spool/cron.... After reboot, it is copied to /var/spoolcron... and automatically executed.
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zigbert


Joined: 29 Mar 2006
Posts: 5290
Location: Valåmoen, Norway
PostPosted: Mon 15 Sep 2008, 12:21    Post subject:  
Nice workaround. I check it out when I get a time-window.

Cron supports a crontab location in /etc/
Code:
Cron searches /var/spool/cron for crontab files which are named after accounts in crontabs found are loaded into memory. Cron also searches for /etc/crontab and the files in the directory, which are in a different format (see crontab(5))


Taken from 'man cron'. I will try to use this by default.

Sigmund
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Dougal


Joined: 19 Oct 2005
Posts: 2505
Location: Hell more grotesque than any medieval woodcut
PostPosted: Sat 20 Sep 2008, 07:33    Post subject:  
jake_take wrote:
I wonder why Pschedule data should be saved in /var/spool/cron/crontabs? Why not in /etc, for example? No files in /var is saved in pup_save, and the data in /var/spool/cron/crontabs is evaporated in next boot. So I must write the same task schedule in every boot.

To avoid this , I modified Pschedule files so that Pschedule data is saved in /etc and loaded there. But this is not easy for any begginers.

I think /var might be the correct place for cron files...
Rather than modifying Pschedule, I'd get Barry to fix /usr/sbin/snapmergepuppy (the script that saves the files when running from flash media) so it doesn't ignore /var, since I don't think it should (I changed it a while ago, since I had some other problems as a result of /var not being saved).
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wagado

Joined: 23 Dec 2008
Posts: 3
Location: Pennsylvania
PostPosted: Tue 23 Dec 2008, 18:09    Post subject:  
I'm looking for help in using Pschedule to run a script I created.

I put the script in pschedule and select that it run every morning at 7:50, then click on the run button in pschedule xwin locks up.

Is it necessary to click the run button in pschedule for the script to run. Any idea why xwin locks up? Pschedule apears to be running because the script runs on time, but if I ctrl-alt-backspace and run xwin again I don't know if it is still running.

Thanks
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zigbert


Joined: 29 Mar 2006
Posts: 5290
Location: Valåmoen, Norway
PostPosted: Tue 23 Dec 2008, 18:36    Post subject:  
The 'Run' button is for starting scheduled commands (programs) manually. Everything listed in main window is running. Why its lock is hard to tell without investing the script.

Test it easy with setting the time-stamp 2 minutes in the future. Wait and see....


Sigmund
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jake_take

Joined: 09 Jun 2008
Posts: 16
Location: Japan
PostPosted: Fri 26 Dec 2008, 06:01    Post subject:  
This might be another bug. If you have some tasks all of which have a same command and you delete one of these, you will find all these tasks deleted. For example, you have 5 tasks in order to listen to BBC news every 3 hours, i.e. gxine http://www.bbc.co.uk/worldservice/ram/live_infent.ram at 6:00, 9:00, 12:00, 15:00 and 18:00. Cron commands should be like this.

Code:
0 6 * * * gxine http://www.bbc.co.uk/worldservice/ram/live_infent.ram
0 9 * * * gxine http://www.bbc.co.uk/worldservice/ram/live_infent.ram
0 12 * * * gxine http://www.bbc.co.uk/worldservice/ram/live_infent.ram
0 15 * * * gxine http://www.bbc.co.uk/worldservice/ram/live_infent.ram
0 18 * * * gxine http://www.bbc.co.uk/worldservice/ram/live_infent.ram


But 6:00 is too early, so you want to delete this task (0 6 * * * gxine http://www.bbc.co.uk.....). And you delete it by Pschedule's dialog, but the other 4 tasks shall be also deleted simultaneously.
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jake_take

Joined: 09 Jun 2008
Posts: 16
Location: Japan
PostPosted: Fri 26 Dec 2008, 06:42    Post subject:  
To avoid the above phenomenon I edited pschedule's files as follows. Of course there may be another smarter way.
The first step of this method is to number the line of /tmp/pschedule-treeitems. So the file of func_cron_to_human is modifyed like this.

(from line 9 to line 15)
Code:
else
   echo -e "\c" > /tmp/pschedule-treeitems
   cat /var/spool/cron/crontabs/$USER | sed -e "s/ /{\u00f0\u00aeSSS\u0111\u00fe}/g" | sed -e "s/*/{\u00f0\u00aeSTAR\u0111\u00fe}/g" > /tmp/pschedule-forloop
fi
N=1 #jake_take added                <==
for I in `cat /tmp/pschedule-forloop`; do
   I=`echo "$I" | sed -e 's/{ð®SSSđþ}/ /g'` #used later to check for advanced cron
   CRONCOMMAND=`echo "$I" | sed -e "s/{ð®STARđþ}/*/g"`
("N=1" inserted)
and
(line 102 to line 109)
Code:
#if cron contains , / - will it be set to 'Advanced schedule'
   if [ "`echo "$I" | cut -d " " -f 1-5 | grep '/'`" ] || [ "`echo "$I" | cut -d " " -f 1-5 | grep ','`" ] || [ "`echo "$I" | cut -d " " -f 1-5 | grep '-'`" ]; then
      echo "$N:$COMMAND | Advanced schedule | $CRONCOMMAND" >> /tmp/pschedule-treeitems # for main window #jake_take added "$N:"
   else
      echo "$N:$COMMAND | $MONTH$DAY$WEEKDAY$HOUR$PREDAY$TIME_DELIMINATOR$MINUTE | $CRONCOMMAND" >> /tmp/pschedule-treeitems # for main window
   fi
   N=`expr $N + 1` #jake_take added
done

("$N:" added in line 104 and 106, and line 108 "N=`expr $N + 1`" added)

By this modification, we get the following /tmp/pschedule-treeitems.
Code:
1:gxine .. | 6:00 | 0 6 * * * gxine...
2:gxine .. | 9:00 | 0 9 * * * gxine...
3:gxine .. | 12:00 | 0 12 * * * gxine...
4:gxine .. | 15:00 | 0 15 * * * gxine...
5:gxine .. | 18:00 | 0 18 * * * gxine...

The second step is to modify the pschedule main file (pschedule).
"2" ==> "0" in line 85
Code:
 <tree rules_hint=\"true\" exported_column=\"2\">
==>   <tree rules_hint=\"true\" exported_column=\"0\">


Fot this modification, the variable, $TREE, becomes the first column of the selected line ("2:gxine", for exapmle), not the third column ("0 9 * * * gxine...).

The third step is to modify the func_delete file.
The line 28-30 is changed as follows

Code:
if [ "$EXIT" = "yes" ]; then
   TMP=`echo "$TREE" | cut -d " " -f 6-`
   cat /var/spool/cron/crontabs/$USER | grep -wv "$TMP" | grep -v "^$" > /var/spool/cron/crontabs/$USER


==>

Code:
if [ "$EXIT" = "yes" ]; then
   NUM=`echo $TREE | cut -d ":" -f 1` #jake_take, $NUM is 1st part of $TREE
   sed -i -e "${NUM},${NUM}d" /var/spool/cron/crontabs/$USER #jake_take, the selected line of cron command is deleted


The new variable, $NUM, is the number of the selected line in treeitems and the number of the line
of cron commands, which is to be deleted.
As I menioned above, the variable, $TREE, is not the same as of original, So $TREE must be changed. The line 153-155 of func_new is modified as follows.

Code:
else
      TREE=`cat /tmp/pschedule-treeitems | grep $TREE | cut -d "|" -f 3 | cut -c 2-` #jake_take
      edit #generate lists of cron command
      new


And func_run is as follows.

Code:
#! /bin/bash
TREE=`cat /tmp/pschedule-treeitems | grep $TREE | cut -d "|" -f 3 | cut -c 2-` #jake_take
COMMAND=`echo "$TREE" | cut -d " " -f 6-`
echo "$COMMAND" > /tmp/pschedule-run
chmod 777 /tmp/pschedule-run
/tmp/pschedule-run


I checked this modified pschedule and have no troubles so far.
Last edited by jake_take on Wed 13 May 2009, 18:58; edited 1 time in total
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