CODEWITHSUNDEEP
bashshellwait
Pooja
Pooja

Reputation: 501

running multiple commands in parallel in bash

I want to run multiple scripts/commands in parallel in bash. Here is the bash script :

python test_script.py &
docker stop process &
docker stop process1 &
sleep(1)
wait

docker start process1 &
docker start process &
wait

Here, im running multiple dockers and want to start/stop docker when my script python test_script.py is running.

for ex: python script is running and on parallel i want to stop process & process1 docker. python script is still in-progress and then say wait or sleep for 1 min and start the process again.

How can i achieve it ?

Upvotes: 2

Views: 6782

Answers (2)

etopylight
etopylight

Reputation: 1319

From your original description, it seems that we can organize the problem into two scripts

  • A main python script test_script.py

  • A docker restart script say restart_docker.sh which contains all the docker related commands that will be executed in sequence

    docker stop process
sleep 1m
docker start process

With GNU parallel, you can provide these two scripts as arguments to be executed in parallel

parallel ::: 'python test_script.py' 'bash restart_docker.sh'

Upvotes: 1

Alex Dragnea
Alex Dragnea

Reputation: 174

You can combine the following rules:

X; Y Run X and then Y, regardless of success of X

X && Y Run Y if X succeeded

X || Y Run Y if X failed

X & Run X in background.

Upvotes: 1

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