[root@node29 ~]# vim ./test.sh 
# Python脚本内容
PYTHON_TXT="\
#! /usr/bin/env python
#coding: utf-8

import sys
import os

if __name__ == '__main__':
    file = sys.argv[1]
    with open(file, 'r') as r_f:
        for line in r_f:
            print(line)
"

# 生成Python脚本文件
echo "${PYTHON_TXT}" > ./test.py

# 执行Python脚本
python ./test.py big_file.txt