🚀 go-pugleaf

In article <26om4i$4np@sol.TIS.COM> mjr@tis.com (Marcus J. Ranum) writes:


   >	The reason that I would like to do that is because I have a very time 
   >consumung program that takes about 3 days to run and I want to run whenever
   >nobody else is logged on so that I won't be slowing down the other users.

	   I think that the program "screen" (check your favorite sources
   archive) lets you detach and reattach jobs, via some mumbo-jumbo with
   pseudo-ttys that you probably don't want to think about.

   mjr.


Mmmm.  Why not nice the heck out of it?
 
Jack.
--
John M. Twilley | nautilus@acm.rpi.edu | twilley@dewey.nl.nuwc.navy.mil
"Our passion is like a nuclear explosion: violent anticipation, a
brilliant blast of heat and light, and a beautiful sunset..." --me

>	The reason that I would like to do that is because I have a very time 
>consumung program that takes about 3 days to run and I want to run whenever
>nobody else is logged on so that I won't be slowing down the other users.

	I think that the program "screen" (check your favorite sources
archive) lets you detach and reattach jobs, via some mumbo-jumbo with
pseudo-ttys that you probably don't want to think about.

mjr.

rsl11@kuhub.cc.ukans.edu writes:

>Hello there,

  Hello,

>	I would like to do the following in UNIX and I am wondering whther 
>this is is feasible.

  It is.

>1. I would like to run a program using the nohup command so that even if
>I logout the program can still be running.

  All right.

>2. Then I would like to suspend it so that the program won't be running.
>Note that I do not want the process to be killed.

  Use 'ps' command and memorize your program's PID.  Then, you
can suspend the program by 'kill -STOP <PID>'.

>3. Then I want to logout and when I log in again I would like to be able to
>restart the program, i.e. continue it from the point where it was before.

  Just do 'kill -CONT <PID>' and you can unfreeze the program.
I understand that the program is not doing any terminal I/O,
its output being written to some file(s).  If you need terminal
I/O, you can use a free software called 'pty.'

>	I would appreciate any relevasnt response.

  Hope this helps,

						Yasushi Kuno

In article <1993Sep9.163846.53426@kuhub.cc.ukans.edu> rsl11@kuhub.cc.ukans.edu writes:
>Hello there,
>
>	I would like to do the following in UNIX and I am wondering whther 
>this is is feasible.
>
>1. I would like to run a program using the nohup command so that even if
>I logout the program can still be running.
>
>2. Then I would like to suspend it so that the program won't be running.
>Note that I do not want the process to be killed.
>
>3. Then I want to logout and when I log in again I would like to be able to
>restart the program, i.e. continue it from the point where it was before.
>
>	The reason that I would like to do that is because I have a very time 
>consumung program that takes about 3 days to run and I want to run whenever
>nobody else is logged on so that I won't be slowing down the other users. I
>have tried renicing the process but the program still slows down the users so
>I would klike to do what I have explained above. In other words, I want to run
>the program, suspend it, log out, login again, and restart it so that I
>can continue the program.
>
>	I have tried suspending the job using ctrl-z and logged out but after 
>I logged out the program was running.
>
>	I would appreciate any relevasnt response.
>
>Thanks, Chris
>E-mail Address: cneophytou@tesla.ece.ukans.edu

Hi,

 the kill command should be able to stop a job until you restart it.
Use kill -l to show you which signal names/numbers are available.

stop:    kill -STOP pid
restart: kill -CONT pid 

On our SGI machine we can use npri -h ndpri -p pid ....  (ndpri 128-255) to
change priorities. Such a job will only run if there is free CPU time on a 
machine. I do not know if other UNIX Version do have similar commands.


Carsten Menke

 
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Universitaet Bielefeld       Phone [int+49] +521-106-6276
Fakultaet fuer Chemie        Fax   [int+49] +521-106-6146
Anorganische Chemie I
Postfach

D-33501 Bielefeld  (Germany)

email carsten@cheops.chemie.uni-bielefeld.de
   or carsten.menke@post.uni-bielefeld.de

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mcclure@mundil.cs.mu.OZ.AU (Michael MCCLURE) writes:

>screen is EVIL!

>it will probably end up using more CPU time &
>stuffing the users up on the system than running the
>originial program during the day!!!1

I personally think it's a damned useful piece of software which I would
not consider being without, but anyway ..

>it totally stuffed our utmp file to boot
>when we had the accursed thing here :)

I believe if you install it setuid-root, it correctly manages /etc/utmp.

-rob