Databricks init scripts halting - bash

I am trying to install confluent kafka on my databrick drivers and using init scripts there.
I am using below command to write an script to DBFS like below:
%python
dbutils.fs.put("dbfs:/databricks/tmp/sample_n8.sh",
"""
#!/bin/bash
wget -P /dbfs/databricks/tmp/tmp1 http://packages.confluent.io/archive/1.0/confluent-1.0.1-2.10.4.zip
cd /dbfs/databricks/tmp/tmp1
unzip confluent-1.0.1-2.10.4.zip
cd confluent-1.0.1
./bin/zookeeper-server-start ./etc/kafka/zookeeper.properties &
exit 0
""")
The I edit my intiscripts and add en entry there to denote to above location
[![init scripts entry adding][1]][1]
However, when I try to run my cluster it nevers starts and it always halts. If I go to event log, it shows that it is stuck at 'Starting init scripts execution.'
I know there should be tweak in my script to run it on the background but even I am using & at the end of the start command for zookeper.
Can someone give me any hint how to resolve above?
[1]: https://i.stack.imgur.com/CncIL.png
EDIT: I guess this question could be the same if I ask how I can run my script in a %sh databricks cell while the cell can finish the running of above bash script, but at the moment it always telling me that the command is running

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Cron Job Running Shell Script to Run Python Not Working

As written in the title, I am having some problem with my cron job script not executing. I am using CentOS 7.
My crontab -e looks like this:
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My cron_jobs.sh looks like this:
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So, what I've found is that the log for the cron jobs in /var/logs/cron states that the cron ran at 0:30 am accordingly.
Strangely, I find that /opt/abc/logs/cron_jobs.log empty, and the scripts does not seem to run at all. It used to output some log before I re-inputted the crontab (to re-install the cron jobs), and replaced cron_jobs.sh, so I think the problem might have arose from those actions.
And also, I would like to know if there are any ways to log the error from executing a python script. I have been trying to run /opt/abc/virtualenv/bin/python2.7 scripts/review_user_status.py but it never seem to work as intended (does not run the main function at all), and there is no log output whatsoever.
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Here is a snippet of the log I got from /var/log/cron to show that the cron called the job:
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There are a few areas to check if you haven't performed these already,
if your executable permissions set on the script,
chmod +x <python file>
in addition permissions for the user to access the directories.
Run the script manually to test the script works from beginning to end, as the user who will be running the script, will be more realistic.
You can test your crontab schedule by temporarily setting every minute for testing, unlike Windows where you can right, click and click Run.
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It is because I ftp my files to the machine where the script breaks. On the other hand, it works fine on another machine because I used git pull instead of ftp.
Hope that this info will also be a helpful to others!

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Thank you to everyone who have commented on this post to help me out!

Groovy Execute Bash Script in Jenkins

I am trying to run a bash script from Groovy in Jenkins but I am not able to find the lucky commands.
I can run this and it creates my "RJ" directory:
process = "mkdir /app/jenkins/workspace/TEST/RJ"
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process = "/app/jenkins/workspace/TEST/info_file.sh"
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similar problem was here:
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First off, download and extract RevoMath library, navigate to RevoMath folder then execute the install script.
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RUN tar -xzf RevoMath-3.2.4.tar.gz
RUN cd RevoMath/
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echo "2. Uninstall MKL"
echo "3. Exit utility"
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My .sh file
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It's more common to just put the contents of the script file directory into the job configuration; that way you can see what the job is doing and you'll avoid problems like this one.
You should use run "Execute windows batch command" and not "Execute Shell"

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