Get stdout / stderr from slurm job at runtime

I have a batch file to submit a job with sbatch

. Batch file content

# Setting the proper SBATCH variables 
...
#SBATCH --error="test_slurm-%j.err"
#SBATCH --output="test_slurm-%j.out"
...

WORKDIR=.
echo "Run 1"
${WORKDIR}/test_slurm
echo "Run 2"
${WORKDIR}/test_slurm

      

        
        
        
      

    

The file is test_slurm-%j.out

sometimes appended and exited only after each line ends. For example, the output of the first instance test_slurm

will not be flushed test_slurm-%j.out

to completion test_slurm

.

Is it possible to run stdout / stderr at runtime so I can check the file test_slurm-%j.out

for execution control?

According to How to change how often SLURM updates the output file (stdout)? and also https://unix.stackexchange.com/questions/25372/turn-off-buffering-in-pipe I tried with

stdbuf -oL -eL ${WORKDIR}/test_slurm
stdbuf -o0 -e0 ${WORKDIR}/test_slurm
stdbuf -o1 -e1 ${WORKDIR}/test_slurm
unbuffer ${WORKDIR}/test_slurm

      

        
        
        
      

    

None of this worked.

This doesn't seem to provide an answer.