linux bash script running multiple python

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Top 3 Answer for linux bash script running multiple python

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90

This by default will already run one after the other.


To check that python a.py completed successfully as a required condition for running python b.py, you can do:

#!/usr/bin/env bash python a.py && python b.py 

Conversely, attempt to run python a.py, and ONLY run 'python b.py' if python a.py did not terminate successfully:

#!/usr/bin/env bash python a.py || python b.py 

To run them at the same time as background processes:

#!/usr/bin/env bash python a.py & python b.py & 

(Responding to comment) - You can chain this for several commands in a row, for example:

python a.py && python b.py && python c.py && python d.py  
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86

prompt_err() { 

echo -e "\E[31m[ERROR]\E[m"

}

prompt_ok() {

echo -e "\E[32m[OK]\E[m"

}

status() {

if [ $1 -eq 0 ]; then

prompt_ok

else prompt_err

exit -1

fi

}

a.py

status

b.py

You can use the check code above.

If 'a.py' is done only then it will process 'b.py', otherwise it will exit with an 'Error'.

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72

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