python bash scripting tutorial
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bash scripting is a powerful tool for automating tasks in a unix-like environment. while bash is the default shell for many systems, python can also be utilized to create effective scripts. in this tutorial, we'll explore how to write python scripts that interact with the bash shell.
make sure you have python installed on your system. additionally, a basic understanding of bash commands will be beneficial.
let's start by creating a simple python script. open your preferred text editor and create a file named script.py.
this script prints a basic message. save the file and give it execute permissions:
now, let's execute the python script from the bash shell. open your terminal and navigate to the directory containing script.py. run the following command:
you should see the output: "hello, python bash scripting!"
you can pass arguments to your python script from the bash command line. update script.py:
now, you can pass a name as an argument:
this will output: "hello, john!"
to execute bash commands from python, you can use the subprocess module. update your script:
this example lists the contents of the current directory using the ls -l command. save and execute the script:
you can integrate bash and python logic within the same script. for instance, let's create a script that checks the disk space and notifies if it's low:
run the script:
this script checks the disk space and provides a warning if it exceeds 90%.
congratulations! you've created a python script that interacts with the bash shell. feel free to explore more complex scenarios by combining python and bash commands based on your requirements.
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