Executes scripts parallelly based on their success


 
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# 1  
Old 02-06-2014
Executes scripts parallelly based on their success

Hi Team ,
I have one Master.sh file which call X,Y,Z scripts ,
but here X may call again some sub scripts X_sub1.sh , X_sub2.sh
Y calls Y_sub1.sh,Y_sub2.sh and similarly Z script also .

Now requirement is Both X and Y should execute parallel bcz X and Y are independent each other , once X and Y finishes successfully then only Z will start bcz Z script will depend on X and Y,

All these scripts are places in Master.sh file.

My code in Master.sh file

Code:
bash X.sh &
bash Y.sh 
if [$? -eq 0]
bash Z.sh
fi


Last edited by bartus11; 02-06-2014 at 06:06 AM.. Reason: Please use [code][/code] tags.
# 2  
Old 02-06-2014
What is bcz? ( Im maybe tired ( its my before last day of support shift...)
# 3  
Old 02-06-2014
Quote:
Originally Posted by vbe
What is bcz? ( Im maybe tired ( its my before last day of support shift...)
I bet 'bcz' is 'because' in l33t-speak
# 4  
Old 02-07-2014
Dear Team ,
Apologize for shortcuts , Here "bcz" means because .
Hope above description gives sufficient details about problem, let me brief it again ,

Master.sh file contains X,Y,Z scripts , X may call again some sub scripts X_sub1.sh , X_sub2.sh ,Y calls Y_sub1.sh,Y_sub2.sh and similarly Z script also .

now X and Y should execute parallel, once X and Y finishes successfully then only Z script should start,
I kept below logic in Master.sh file ,

Code:
bash X.sh & bash Y.sh if [$? -eq 0] bash Z.sh fi

Above logic is working but Z script starts execution though X and Y are still running,
Please help me to write logic?

---------- Post updated at 02:55 PM ---------- Previous update was at 02:54 PM ----------

bash X.sh & bash Y.sh if [$? -eq 0] bash Z.sh fi
# 5  
Old 02-07-2014
Its just a question of putting a flag, like touch X-success at end of execution if successful, then to check if both flages are there, execute next step and finally remove the flags...
# 6  
Old 02-07-2014
Start both scripts in background and use the wait command to wait until both are finished. Use vbe's suggestion to check for success (modfy X.sh and Y.sh to create a flagfile if they finished successful).
Code:
X.sh &
Y.sh &
wait
[ -f x.flagfile -a -f y.flagfile ] && Z.sh

This User Gave Thanks to cero For This Post:
# 7  
Old 02-07-2014
Try:
Code:
bash X.sh &
Xpid=$!
bash Y.sh && wait $Xpid && bash Z.sh

These 2 Users Gave Thanks to Don Cragun For This Post:
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