How to run scripts sequentially in background?

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10-10-2016

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How to run scripts sequentially in background?

Hi ,
I have prepared the following shell script to run the hqls in background.
These scripts are running Parallel but I want to run the hqls sequentially in background.

Code:

cat >cc_script.ksh
nohup hive -hiveconf rrdt=2016-06-12 -f /home/files/cust1.hql > home/log/cust1.log 2>&1 &
nohup hive -hiveconf rrdt=2016-06-12 -f /home/files/cust2.hql > home/log/cust2.log 2>&1 &
nohup hive -hiveconf rrdt=2016-06-12 -f /home/files/cust3.hql > home/log/cust3.log 2>&1 &
nohup hive -hiveconf rrdt=2016-06-12 -f /home/files/cust4.hql > home/log/cust4.log 2>&1 &
ksh cc_script.ksh

Thanks in advance.

Moderator's Comments:

Mod Comment

If you ignore using code tags, you will be banned soon.

Last edited by zaxxon; 10-10-2016 at 02:53 AM..

ROCK_PLSQL

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Then, remove the nohups and & s and run the entire script in background.

RudiC

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Hi,

Please help me how to run in background.

Thanks

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Did you not understand RudiC's post?
Let me help...

Code:

hive -hiveconf rrdt=2016-06-12 -f /home/files/cust1.hql > home/log/cust1.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust2.hql > home/log/cust2.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust3.hql > home/log/cust3.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust4.hql > home/log/cust4.log 2>&1

wisecracker

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@OP:
Please stop ignoring helpful answers and just stop repeating your demanding behaviour if it is not already presented in a way, that you can copy & paste it. This is very bad behaviour. You can always ask, if you don't understand something.
Start using your brain. This also involves communication and communication goes in both ways.

You will be banned if you don't change your behaviour.

cheers
zaxxon

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Quote:

Originally Posted by ROCK_PLSQL

Hi,

Please help me how to run in background.

Thanks

As you have already been told, the obvious way to do that would be to change your script to:

Code:

hive -hiveconf rrdt=2016-06-12 -f /home/files/cust1.hql > home/log/cust1.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust2.hql > home/log/cust2.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust3.hql > home/log/cust3.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust4.hql > home/log/cust4.log 2>&1

and run your script with:

Code:

ksh cc_script.ksh&

If the backgrounding needs to be done inside your script, you could use:

Code:

{
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust1.hql > home/log/cust1.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust2.hql > home/log/cust2.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust3.hql > home/log/cust3.log 2>&1
hive -hiveconf rrdt=2016-06-12 -f /home/files/cust4.hql > home/log/cust4.log 2>&1
}&
wait

and run your script with:

Code:

ksh cc_script.ksh

or:

Code:

ksh cc_script.ksh&

Don Cragun

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