我从一个shell脚本中调用一个python脚本。 该Python脚本返回失败的情况下，错误代码。
如何处理在shell脚本这些错误代码，并在必要的时候退出呢？
Answer 1:
最后一个命令的退出代码包含在$? 。
使用下面的伪代码：
python myPythonScript.py
ret=$?
if [ $ret -ne 0 ]; then
#Handle failure
#exit if required
fi
Answer 2:
你的意思是在$? 变量 ？
$ python -c 'import foobar' > /dev/null
Traceback (most recent call last):
File "<string>", line 1, in <module>
ImportError: No module named foobar
$ echo $?
1
$ python -c 'import this' > /dev/null
$ echo $?
0
Answer 3:
请使用以下流程脚本执行结果的逻辑：
python myPythonScript.py
# $? = is the exit status of the most recently-executed command; by convention, 0 means success and anything else indicates failure.
if [ $? -eq 0 ]
then
echo "Successfully executed script"
else
# Redirect stdout from echo command to stderr.
echo "Script exited with error." >&2
fi
文章来源: Handling exit code returned by python in shell script
