从python调用Shell脚本

Question

我有一个Python脚本，它调用外壳脚本，然后又调用一个名为iv4_console的.exe。 我需要打印iv4_console的标准输出以进行调试。 我用了这个：Python：

import sys
import subprocess

var="rW015005000000"
proc = subprocess.Popen(["c.sh", var], shell=True, stdout=subprocess.PIPE)

output = ''
for line in iter(proc.stdout.readline, ""):
        print line
        output += line

贝壳：

start_dir=$PWD
release=$1
echo Release inside shell: $release
echo Directory: $start_dir
cd $start_dir
cd ../../iv_system4/ports/visualC12/Debug
echo Debug dir: $PWD
./iv4_console.exe ../embedded/LUA/analysis/verbose-udp-toxml.lua ../../../../../logs/$release/VASP_DUN722_20160307_Krk_Krk_113048_092_1_$release.dvl &>../../../../FCW/ObjectDetectionTest/VASP_DUN722_20160307_Krk_Krk_113048_092_1_$release.xml
./iv4_console.exe ../embedded/LUA/analysis/verbose-udp-toxml.lua ../../../../../logs/$release/VASP_FL140_20170104_C60_Checkout_afterIC_162557_001_$release.dvl &>../../../../FCW/ObjectDetectionTest/VASP_FL140_20170104_C60_Checkout_afterIC_162557_001_$release.xml

exit

但这不起作用，它什么也不打印。 你怎么看？

Answer 1

看到我的评论，最好的方法（imo）是仅使用python。

但是，在回答您的问题时，请尝试：

import sys
import subprocess

var="rW015005000000"
proc = subprocess.Popen(["/bin/bash", "/full/path/to/c.sh"], stdout=subprocess.PIPE) 
# Best to always avoid shell=True because of security vulnerabilities. 
proc.wait() # To make sure the shell script does not continue running indefinitely in the background 
output, errors = proc.communicate()

print(output.decode()) 
# Since subprocess.communicate() returns a bytes-string, you can use .decode() to print the actual output as a string. 

Answer 2

您可以使用

import subprocess
subprocess.call(['./c.sh'])

调用python文件中的shell脚本

要么

import subprocess
import shlex

subprocess.call(shlex.split('./c.sh var'))