abort execution of shell script on error

Question

I am new to shelll script and my question here might be very basic.

I have a script(.sh file) which is making call to couple of scipt files. now suppose, I am getting error message on execution of script 1, I would like to abort the script and completely terminate the script flow. It should not go on next step.

could you please tell me how i can achieve this.

EDIT

My scriptA is making call to Script B, which internally making call to some other scriptC.

if execution of StopServer1.py script(part of script B) failed, flow should terminate here itself and should not come to StopServer2 and StopServer3 and control goes to Script A. which should also terminate .

please let me know if set -e will help here.

cd /usr/oracle/WSAutomate/
java weblogic.WLST /usr/oracle/StopServer1.py >> $logFileName
java weblogic.WLST /usr/oracle/StopServer2.py >> $logFileName
java weblogic.WLST /usr/oracle/StopServer3.py >> $logFileName

How are you getting the error message? Via exit status code or via terminal output? — Jasper
– Jasper, Commented Mar 25, 2014 at 9:51

anubhava · Accepted Answer · 2014-03-25 09:51:54Z

4

You can use:

set -e

for aborting the script on error.

main script snippet:

#!/bin/bash    
set -e

# Any failure in these script calls will make main script to exit immediately
./script1
./script2
./script3

answered Mar 25, 2014 at 9:51

anubhava

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4 Comments

kumarb Over a year ago

Hello Anubhva - thanks for your quick response. I have doubt here. my script is making call to Script B, which internally making call to some other script. if execution of StopServer1.py script failed, flow should terminate here itself and should not come to StopServer2 and StopServer3. please let me know if set -e will help here. cd /usr/oracle/WSAutomate/ java weblogic.WLST /usr/oracle/StopServer1.py >> $logFileName java weblogic.WLST /usr/oracle/StopServer2.py >> $logFileName java weblogic.WLST /usr/oracle/StopServer3.py >> $logFileName

kumarb Over a year ago

I have just tested this option and its working to some extend. I see my script is getting aborted.. can i echo or print some message before aborting the script.. this is just for support analyst to understand what went wrong.

fedorqui Over a year ago

@kumarb do not post code in comments, it is impossible to read properly. Instead, update your question or ask a new one if it is another issue.

anubhava Over a year ago

@kumarb: What you're looking for can be done using trap command.

arutaku · Accepted Answer · 2014-03-25 09:53:35Z

0

You can use the operator && this way <execute_script1> && <execute_script2>.

It executes script1 and, only if everything goes right, it executes script2. In case of error script2 will not run.

answered Mar 25, 2014 at 9:53

arutaku

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1 Comment

kumarb Over a year ago

Thanks but this will not solve my issue.. ! appreciate your quick response.

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