09-29-2006
Run a job in background for infinte time
Hello All,
I would like to know if it is possible to launch a job in background for infinite time.
example:
myScript.ksh
while true
do
( echo "(`date`)"; top -U user | grep 'Memory:' ) >> log &
sleep 1800
done
and when i do myScript.ksh & my log file is just updated for the first time and never again.
but when i do myScript.ksh it works kool.
could someone suggests me pls
tnx
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I try to run a script as background job.
script:
#!/usr/bin/csh
/usr/bin/date +20%y-%m-%d > ~/datsql.txt
If I start it I got this output:
tac> ./datermitteln&
293
+ Stopped (SIGTTOU) ./datermitteln&
I insert the following line inside my script, but without any... (3 Replies)
Discussion started by: joerg
3 Replies
2. UNIX for Dummies Questions & Answers
Hiya,
Recently I've run a few scripts in the foreground, but have realised later they should of been better nohup'd and placed in the background. I understand how to change a foreground job into a background one, but how would put the job into the nohup state?
Thanks (1 Reply)
Discussion started by: rdbooth
1 Replies
3. UNIX for Dummies Questions & Answers
on gnome i open a terminal and run wget http://soommmething & in the background. because wget shows me downloading progress percentage and download speed continuously, I exit the gnome-terminal
after a while i want to see the download percentage but dont know how. my ps -u myname shows that... (3 Replies)
Discussion started by: babayeve
3 Replies
4. Shell Programming and Scripting
I have a job that runs for an unspecified amount of time. I want to run this as a cron job for a specified amount of time, say 2 hours. Once the time is up, the program should be killed in the middle of execution. How can I do this?
Thanks. (5 Replies)
Discussion started by: cooldude
5 Replies
5. UNIX for Dummies Questions & Answers
I have a script I want to run in the background, and I have looked it up but I am not exactly sure how to do. First of all to run it in the background do you have to put something in the script or is it just a command when you go to run it. I found this solution to it but once again I am not to... (2 Replies)
Discussion started by: mauler123
2 Replies
6. Shell Programming and Scripting
Hello Everyody,
Having a doubt.
sort file1 &
when we sent a job to the background it returns
Job Number
PID
again if we want to ... (1 Reply)
Discussion started by: knroy10
1 Replies
7. Shell Programming and Scripting
How to bring a backgroud job say sample_script.sh to foreground (4 Replies)
Discussion started by: rafa_fed2
4 Replies
8. Shell Programming and Scripting
Hi,
First of all merry christmas and Happy holidays to all :D
My situation is as below,
When a backup job runs on a mainframe server, it creates a 0byte file on a network drive which is accessible through linux
Linux server : Red Hat Enterprise Linux Server release 5.3 Beta (Tikanga)
File... (6 Replies)
Discussion started by: sam05121988
6 Replies
9. Shell Programming and Scripting
Hi,
1)
If some job supposed to run on 1st of every month at 7 AM
In cron job when we have a blackout on the 1st ( i.e when 1st falls on a sunday ) how can we make the job run the next business day?
2) How can we run a job on 25th of every quarter 7 AM(jan,apr,jul,oct)
And if 25th... (5 Replies)
Discussion started by: System Admin 77
5 Replies
shell(1F) FMLI Commands shell(1F)
NAME
shell - run a command using shell
SYNOPSIS
shell command [command] ...
DESCRIPTION
The shell function concatenate its arguments, separating each by a space, and passes this string to the shell ($SHELL if set, otherwise
/usr/bin/sh).
EXAMPLES
Example 1: A sample output of shell command.
Since the Form and Menu Language does not directly support background processing, the shell function can be used instead.
`shell "build prog > /dev/null &"`
If you want the user to continue to be able to interact with the application while the background job is running, the output of an exe-
cutable run by shell in the background must be redirected: to a file if you want to save the output, or to /dev/null if you don't want to
save it (or if there is no output), otherwise your application may appear to be hung until the background job finishes processing.
shell can also be used to execute a command that has the same name as an FMLI built-in function.
NOTES
The arguments to shell will be concatenate using spaces, which may or may not do what is expected. The variables set in local environments
will not be expanded by the shell because "local" means "local to the current process."
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
sh(1), attributes(5)
SunOS 5.10 5 Jul 1990 shell(1F)