(OLD) (ARCHIVED) Puppy Linux Discussion Forum

[technosaurus]

Maybe not by the time they get to this page.

[Mercedes350se]

I found this script at:

http://turtlespond.net/scripts/scripts/save-dvb

but it states, in part, "Scheduling is via atd ... ".

Searching I found this site:

http://www.simplehelp.net/2009/05/04/how-to-schedule-tasks-on-linux-using-the-at-command/

Unfortunately my full 3.01 HDD install does not seem to have this command.

What can I do?

Edit: I found this tutorial quite interesting because it does, in part, what I hope to achieve eventually.

http://turtlespond.net/bash_scripting_tute/00-index.html

It may be of some use to some one else.

[technosaurus]

at/atd is similar to cron/crond

see also:
http://www.wensley.org.uk/dvb
http://ffmpeg.org/ffmpeg.html#Video-and-Audio-grabbing
(I don't know a light command line way to change channels though... )

[Semme]

*Pass..

[Mercedes350se]

[technosaurus]

I kinda have a daemon process script in my head but I am not at a linux box to test, maybe someone who is can fix my best guess

[Mercedes350se]

Let me state that I am a bash neophyte so I have been "playing" with the above script but I keep getting the error message:

syntax error near unexpected token `done'

Would somebody analyse the script and advise. Please.

[technosaurus]

sorry about that, my memory failed me

first I forgot to put the : in parens (

I was in C mode and thinking of stat/lstat and that they would correspond to the /proc/PID ... but they are in /proc/PID/stat in a difficult to interpret way (seconds since epoch)

the equivalent is
stat -c %y /proc/pid

but if you are going to do that, you may as well just use date

-sorry, couldn't do a shell only version (well not quickly or easy to follow)

see date --help for the formats

ex.
date +%D@%R
will give you
month/day/year@military time

which will let you do
STARTTIME="05/05/12@22:30"


CURRENTTIME=`date +%D@%R`

if [ "$STARTTIME" == "$CURRENTTIME" ]; then
#your record code here &
rPID=$!
fi

if [ "$STOPTIME" == "$CURRENTTIME" ]; then
kill $rPID
fi

[Mercedes350se]

It appears that there is no provision for CURRENTTIME to be "polled" until such time that it equals STARTTIME or am I missing something?

[Shep]

[Shep]

[Mercedes350se]

Shep,

Thank you for your input.

Regarding pschedule command and cron - it looks as though these are to schedule tasks on a regular basis rather than, in my case, simply recording "as needed".

[Shep]

[Mercedes350se]

Shep,

Thanks. One more question - where do I extract it to?

[Shep]