Introduction to commonly used files in shell scripts written in Python

Some related regular expressions and some temporary files are often used in shell scripts written in Python.) There are also some related files such as the/etc/passwd file, the following is an introduction to the relevant files we will use in the actual operations of writing shell scripts in gPython.

Sys. argv is a list that stores the command line parameters of the python program. Here, sys. argv [0] is the name of the program.

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You can't just say you don't want to practice it. Next we will write a simple script for copying files. My colleague who asked me to write a script two days ago had a directory of tens of thousands of files. He wanted to copy these files to other directories and could not directly copy the directory itself. He tried "cp src/* dest/" and reported a command line too long error. Let me write a script for Python. Start with python:

 
 

  
  
import sys,os.path,shutil  
  
  
for f in os.listdir(sys.argv[1]):  
  
  
shutil.copy(os.path.join(sys.argv[1],f),
sys.argv[2]) 
 
 

Try the post in the linuxapp version-rename all the files in a folder to 10001 ~ 10999. You can write as follows:

 
 

  
  
import os.path,sys  
  
  
dirname=sys.argv[1]  
  
  
i=10001 
  
  
for f in os.listdir(dirname):  
  
  
src=os.path.join(dirname,f)  
  
  
if os.path.isdir(src):  
  
  
continue  
  
  
os.rename(src,str(i))  
  
  
i+=1 
 
 

The above is an introduction to the regular expression-related content that is frequently used to compile shell scripts in Python. I hope you will gain some benefits.