查看“Python和运维”的源代码

=python常用的运维脚本=
==从日志文件中提取所有的错误日志并存储到另一个文件中 方便给开发人员查看 ==
<pre>



数据处理与脚本 之  Python 脚本，从日志文件中提取所有的错误日志并存储到另一个文件中 方便给开发人员查看。


# errmv.py 
def extract_errors(log_file,output_file):
    with open(log_file,'r') as infile, open(output_file,'w') as outfile:
        for line in infile:
            # //if "ERROR" in line:
            if "failed" in line:
                outfile.write(line)

extract_errors('nglog.log','error.log')


➜  tmp cat nglog.log 
2024/09/06 17:42:07 [emerg] 64755#64755: open() "/etc/nginx/sites-enabled/default" failed (2: No such file or directory) in /etc/nginx/nginx.conf:61
2024/09/06 17:44:59 [notice] 65501#65501: using inherited sockets from ""

 tmp py3  errmv.py 


➜  tmp cat error.log 
2024/09/06 17:42:07 [emerg] 64755#64755: open() "/etc/nginx/sites-enabled/default" failed (2: No such file or directory) in /etc/nginx/nginx.conf:61

</pre>

== py3 批量修改文件后缀名 或者去掉后缀名==

<pre>
#!/usr/bin/python3
# -*- coding:utf-8 -*-

# python批量更换后缀名 注意  需要把脚本放在与修改的文件同一目录下，因为filenames只是获取了程序目录的文件名。
import os

# 列出当前目录下所有的文件
files = os.listdir('.')
for filename in files:
	portion = os.path.splitext(filename)
	# 如果后缀是.dat
	if portion[1] == ".txt":
		#  这里是把 .txt去掉     重新组合文件名和后缀名
		newname = portion[0]

		#txt 文件改为sh 要用这个记得打开下行注释
		#newname = portion[0] + ".sh"

		#os.rename(filename,newname)
		os.replace(filename,newname)

# As of Python version 3.3 and later, it is generally preferred to use os.replace instead of os.rename so FileExistsError is not raised if the destination file already exists.



#!/usr/bin/python3
# -*- coding:utf-8 -*-
# python批量更换后缀名 进入目录的版本 利用os.chdir
import os
import  sys
os.chdir(r'~/tmp')

# 列出当前目录下所有的文件
files = os.listdir('./')
print('files',files)

for filename in files:
	portion = os.path.splitext(filename)
	# 如果后缀是.txt
	if portion[1] == ".txt":
		#  这里是把 .txt去掉     重新组合文件名和后缀名
		newname = portion[0]

		#txt 文件改为sh 要用这个记得打开下行注释
		#newname = portion[0] + ".sh"

		os.rename(filename,newname)
		#os.rename(filename,newname)




</pre>

==python批量更换后缀名 会返回脚本所在目录的版本 ==
<pre>
#!/usr/bin/python3
# -*- coding:utf-8 -*-
# python批量更换后缀名 会返回脚本所在目录的版本
import os
import  sys

# Set the path
path ='~'
# save current working directory
saved_cwd=os.getcwd()
# change your cwd to the directory which contains files
os.chdir(path)

# 列出当前目录下所有的文件
files = os.listdir('./')
print('files',files)

for filename in files:
	portion = os.path.splitext(filename)
	# 如果后缀是.txt
	if portion[1] == ".txt":
		#  这里是把 .txt去掉     重新组合文件名和后缀名
		newname = portion[0]

		#txt 文件改为sh 要用这个记得打开下行注释
		#newname = portion[0] + ".sh"

		os.rename(filename,newname)
		#os.rename(filename,newname)

os.chdir(saved_cwd)

# https://stackoverflow.com/questions/2491222/how-to-rename-a-file-using-python#2491232

</pre>
[https://blog.csdn.net/rosefun96/article/details/78968490  python文件操作3--批量修改文件后缀名]



[https://github.com/fupinglee/MyPython github.com 一些常用的Python脚本]

[https://blog.csdn.net/weixin_44099558/article/details/85775937  Python运维常用的脚本，提高工作效率就靠它了]

[https://www.yisu.com/zixun/7532.html python常用的运维脚本有哪些]

[https://www.zhihu.com/question/28661987 zhihu 你用 Python 写过哪些有趣的脚本？]

[https://zhuanlan.zhihu.com/p/30544304 python爬取廖雪峰教程存为PDF]

=os.path.splitext=

os.path.splitext(“文件路径”)    分离文件名与扩展名；默认返回(fname,fextension)元组，可做分片操作

https://www.cnblogs.com/rychh/articles/9745932.html

https://blog.csdn.net/u011509971/article/details/70244688

=R=
[https://blog.csdn.net/qq_32311359/article/details/86611381  python 遍历文件夹下所有文件名 并去掉后缀存入txt]

[[category:python]]