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Running multiple processes in Linux

 
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# 1  
Old 07-09-2007
Bug Running multiple processes in Linux
Hi guys,

I want to run the multiple scripts at the same time using a ksh script.

For example, I have three scripts to run:
a.ksh, b.ksh and c.ksh

How to start the above 3 scripts simultaneously and then on the completion of the above scripts I have other tasks to schedule.

Thanks
Gary
# 2  
Old 07-09-2007
Code:
a.ksh &
b.ksh &
c.ksh &
wait

This will work as long as the scripts do not write to the terminal.
# 3  
Old 07-09-2007
Quote:
Originally Posted by jim mcnamara
Code:
a.ksh &
b.ksh &
c.ksh &
wait

This will work as long as the scripts do not write to the terminal.
I would argue that it will work as long as they all don't want to read from terminal. Smilie
# 4  
Old 03-24-2009
Hi,

I am doing a "rsync" to another machine and the arguments that i pass is shown below.

1. $HOME/Robin.ksh us
2. $HOME/Robin.ksh uk
3. $HOME/Robin.ksh in

How can i run all the three at the same time. Cant use "&" in this case.

Basically need to execute this at different shells.
Need to sync everything at the same time.


Regards,
Robin
# 5  
Old 03-24-2009
Why not?
Code:
pl@desktop:~/testbed> cat test1.sh
#!/usr/bin/ksh
sleep 10
echo $1
pl@desktop:~/testbed> ./test1.sh ab
ab
pl@desktop:~/testbed> ./test1.sh cd
cd
pl@desktop:~/testbed> ./test1.sh ef
ef
pl@desktop:~/testbed> cat test2.sh
#!/usr/bin/ksh
./test1.sh ab &
./test1.sh cd &
./test1.sh ef &
wait
echo "All done"
pl@desktop:~/testbed> ./test2.sh
ab
ef
cd
All done
pl@desktop:~/testbed>

# 6  
Old 03-24-2009
Thanks for you answer bro.

but
Can we give it with out SLEEP?
starting everything at the same time?
# 7  
Old 03-24-2009
Of course. The sleep was in there for demonstration purpose only, since such a short script would finish before the next would be started. In order to demonstrate parallel execution properly, I had to delay them a bit.
 
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