How to call a shell script from python code?
PythonShellPython Problem Overview
How to call a shell script from python code?
Python Solutions
Solution 1 - Python
The subprocess module will help you out.
Blatantly trivial example:
>>> import subprocess
>>> subprocess.call(['sh', './test.sh']) # Thanks @Jim Dennis for suggesting the []
0
>>>
Where test.sh
is a simple shell script and 0
is its return value for this run.
Solution 2 - Python
There are some ways using os.popen()
(deprecated) or the whole subprocess
module, but this approach
import os
os.system(command)
is one of the easiest.
Solution 3 - Python
In case you want to pass some parameters to your shell script, you can use the method shlex.split():
import subprocess
import shlex
subprocess.call(shlex.split('./test.sh param1 param2'))
with test.sh
in the same folder:
#!/bin/sh
echo $1
echo $2
exit 0
Outputs:
$ python test.py
param1
param2
Solution 4 - Python
import os
import sys
Assuming test.sh is the shell script that you would want to execute
os.system("sh test.sh")
Solution 5 - Python
I'm running python 3.5 and subprocess.call(['./test.sh']) doesn't work for me.
I give you three solutions depends on what you wanna do with the output.
1 - call script. You will see output in your terminal. output is a number.
import subprocess
output = subprocess.call(['test.sh'])
2 - call and dump execution and error into string. You don't see execution in your terminal unless you print(stdout). Shell=True as argument in Popen doesn't work for me.
import subprocess
from subprocess import Popen, PIPE
session = subprocess.Popen(['test.sh'], stdout=PIPE, stderr=PIPE)
stdout, stderr = session.communicate()
if stderr:
raise Exception("Error "+str(stderr))
3 - call script and dump the echo commands of temp.txt in temp_file
import subprocess
temp_file = open("temp.txt",'w')
subprocess.call([executable], stdout=temp_file)
with open("temp.txt",'r') as file:
output = file.read()
print(output)
Don't forget to take a look at the doc subprocess
Solution 6 - Python
Use the subprocess module as mentioned above.
I use it like this:
subprocess.call(["notepad"])
Solution 7 - Python
I know this is an old question but I stumbled upon this recently and it ended up misguiding me since the Subprocess API as changed since python 3.5.
The new way to execute external scripts is with the run
function, which runs the command described by args. Waits for command to complete, then returns a CompletedProcess instance.
import subprocess
subprocess.run(['./test.sh'])
Solution 8 - Python
In case the script is having multiple arguments
#!/usr/bin/python
import subprocess
output = subprocess.call(["./test.sh","xyz","1234"])
print output
Output will give the status code. If script runs successfully it will give 0 otherwise non-zero integer.
podname=xyz serial=1234
0
Below is the test.sh shell script.
#!/bin/bash
podname=$1
serial=$2
echo "podname=$podname serial=$serial"
Solution 9 - Python
Subprocess module is a good module to launch subprocesses. You can use it to call shell commands as this:
subprocess.call(["ls","-l"]);
#basic syntax
#subprocess.call(args, *)
You can see its documentation here.
If you have your script written in some .sh file or a long string, then you can use os.system module. It is fairly simple and easy to call:
import os
os.system("your command here")
# or
os.system('sh file.sh')
This command will run the script once, to completion, and block until it exits.
Solution 10 - Python
If your shell script file does not have execute permissions, do so in the following way.
import subprocess
subprocess.run(['/bin/bash', './test.sh'])
Solution 11 - Python
Subprocess is good but some people may like scriptine better. Scriptine has more high-level set of methods like shell.call(args), path.rename(new_name) and path.move(src,dst). Scriptine is based on subprocess and others.
Two drawbacks of scriptine:
-
Current documentation level would be more comprehensive even though it is sufficient.
-
Unlike subprocess, scriptine package is currently not installed by default.
Solution 12 - Python
Please Try the following codes :
Import Execute
Execute("zbx_control.sh")