requests=(25 50 75 100)
factors=(3 6)
graphsizes=(25 50 75)

for request in "${requests[@]}" 
do
  for factor in "${factors[@]}"
  do
    for size in "${graphsizes[@]}"
    do
        echo "Now Running: n = ${request}, factor = ${factor}, size = ${size}" >> nohup.out
        nohup python3 -u main.py "$request" 50 "$factor" "$size" > ${request}_${factor}_${size}.log 
        echo "Done Running: n = ${request}, factor = ${factor}, size = ${size}" >> nohup.out
    done
  done
done

My intention: I want to run all the various permutation of arguments to main.py sequentially; i.e., print Now Running..., then call nohup and run the python script, when that is done print Done running...

Note that I cannot add a & at the end of the nohup line, since that would make the script proceed before main.py has finished.

However, by not using the &, I can no longer use the current shell process while this script is running. Is there any way to get around this?

CodePudding user response：

What you probably want, is the following: remove the nohup from the commands in your shell script, but run the overarching script that you show here (i.e., all the code; let's call it iterations.bash with nohup and in the background: nohup bash iterations.bash >& iterations.log &. Now you have your command line back, while the processes inside the script are run sequentially.