How to call a shell script from python code

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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

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The subprocess module will help you out  Blatantly trivial example   gt  gt  gt  import subprocess  gt  gt  gt  subprocess call   sh      test sh      Thanks  Jim Dennis for suggesting the    0   gt  gt  gt    Where test sh is a simple shell script and 0 is its return value for this run

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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

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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

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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

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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

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If your shell script file does not have execute permissions  do so in the following way   import subprocess subprocess run    bin bash      test sh

User · Answer

import os import sys   Assuming test sh is the shell script that you would want to execute  os system  sh test sh

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Use the subprocess module as mentioned above   I use it like this   subprocess call   notepad

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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

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Please Try the following codes     Import Execute   Execute  zbx control sh

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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

[python] How to call a shell script from python code?

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