避免：bash中意外标记附近的语法错误

Question

我有一个shell，它调用一个类似于这样的python脚本。。。

外壳代码：

#!/bin/sh
python PyTest.py

print("FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM")

5 + 4

print("No semicolons here!")

Python代码：

#This is my test Python script running from bash

print("FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM")

print(5 + 4)

print("No semicolons here!")

这是输出。

74-85-81-234:Desktop Cody$ ./PyTest.sh
FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM
9
No semicolons here!
./PyTest.sh: line 5: syntax error near unexpected token `"FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM"'
./PyTest.sh: line 5: `print("FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM")'

我已经查找了“syntax error near unexpected token”错误，看起来这是预期的。有没有更好的方法可以做到这一点，并且有没有办法以这种方式调用函数而不出现Bash错误？

提前谢谢。

Answer 1

您可以使用以下选项之一：

#!/usr/bin/env python

print("FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM")
5 + 4
print("No semicolons here!")

或者

#!/bin/sh

python <<%
print("FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM")
5 + 4
print("No semicolons here!")
%

注意，5 + 4在这两种情况下都不会产生任何输出，因为这不是交互式python会话：

FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM
No semicolons here!

使用-i选项将使其工作：

#!/bin/sh

python -i <<%
print("FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM")
5 + 4
print("No semicolons here!")
%

输出：

[GCC 4.8.5 20150623 (Red Hat 4.8.5-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> FE FI FO FUM I'M GOING TO MAKE IT TUMBLE TUM TUM
>>> 9
>>> No semicolons here!
>>>