In this tutorial we are going to see how to execute Linux shell commands from your python script. This may be helpful as you can program the required modules in shell. This would be helpful to automate the tasks in Raspberry Pi.

Executing shell commands

The Linux shell commands can be easily executed using the function os.system(). Here In the example I am executing the date linux command from python. It prints the date as output.

Example code

shell.py

import os

def main():

    os.system("date")

if __name__=="__main__":
main()

Executing shell scripts

Shell scripts can also be easily executed using the same os.system() function. Here in the example code I am executing a linux shell script which prints “Hello Python from Shell” .

Example code

hello.sh

#Linux shell Script

echo "Hello Python from Shell";

shell.py

import os

def main():

    os.system("sh hello.sh")

if __name__=="__main__":
main()

Steps to execute the code

1. Open the Raspberry Pi terminal.

2. Then type  nano program.py

3. Now type the python program and save it.

4. Execute using the command  python program.py

Any questions comment here 🙂

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Srinivasan

Developer / Content Creator at Learn2Crack

Am an active blogger who loves programming, gaming, computer and internet tricks.

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