Passing JobID to Matlab Script (not Function) in Submitting Multiple Jobs

In my main script, I call a function and within that function I call stata (with system command) where it takes input from matlab and then matlab calls the output of this stata command. I want each of these input and output files have a unique JobID. (I can give other unique IDs with datetime etc, but I don't want this.) I want JobIDs like 1,2,3...

I am using a cluster environment and PBS file to add details about my submit. I want this PBS file take the JOBID from my first step and then send it to the matlab script.

My steps are as follows:

1- write a .py script for multiple jobs (I first try for #2 jobs)

#!/bin/env python
#PBS -A open
import csv, subprocess
for i in range(1,3)
    qsub_cmd = """qsub -F JOBID = {jobid} submit_m3.pbs""".format(jobid=i)
    print(qsub_cmd)
    exit = subprocess.call(qsub_cmd, shell=True)

2 - Write pbs file called submit_m3.pbs (I need to pass JOBID here)

 #!/bin/bash
#PBS -l nodes=1:ppn=8
#PBS -l walltime=48:00:00
#PBS -l pmem=10gb
#PBS -A open
# Load in matlab
module purge
module load matlab
cd ~/code
matlab -nodisplay -nosplash < myScript.m > log.myLog  
# JOBID must be placed somewhere in the above line. 

3- Call the .py script in Linux terminal

python myPyFile.py 

In the step 2, instead of the line starting with matlab, I also tried this (following other community questions)

matlab -nodisplay -nosplash -nodesktop -r "job_id=${JOBID};run('myScript.m');exit;"

but this code didn't pass JOBID to my script.

So, 2 things need to be solved. Passing JOBID to .pbs file and then to matlab file. Once it is in matlab, the rest (stata part) is OK!