Linux common command 16 file permission management

1, Meaning of ls-l paragraphs wang@wang:~/workpalce/threading$ ls -l //Total dosage 16 drwxrwxr-x 2 wang wang 4096 12 month 19 17:17 a -rw-rw-r-- 1 wang wang 636 12 month 19 10:59 test.py -rw-rw-r-- 1 wang wang 596 12 month 5 12:10 th.py -rw-rw-r-- 1 wang wang 590 12 month 19 10:58 thtest.py The first field has a total of 10 '-', the firs ...

Posted on Sat, 02 May 2020 00:52:43 -0700 by Meissa

Application: folder Copyer (multi process version)

Application: folder Copyer (multi process version) import multiprocessing import os import time import random def copy_file(queue, file_name,source_folder_name, dest_folder_name): """copy File to specified path""" f_read = open(source_folder_name + "/" + file_name, "rb") f_write = open(dest_folder_name + "/" + file_name, "wb") ...

Posted on Fri, 01 May 2020 22:50:25 -0700 by Brian W

python uses recursion to deal with problems

Today we're going to use recursion, Fibonacci sequence, and print file hierarchy , Hanoi Tower Games. Recursion is a kind of method of function calling itself. No one says that it's a dead cycle to call itself. We need to set our own end conditions. I personally think that recursion thinking you only need to clarify the beginning and end co ...

Posted on Fri, 01 May 2020 22:49:39 -0700 by Liquix

Docker binding Remote API port

Docker officially provides two different SDKs and HTTP API s: Go and python. I'm not familiar with the Go language. I tried the python SDK. Docker's official Python SDK is for version 2.x, which is tested directly on Python 2.7.5 of CentOS, but there are errors: # python Python 2.7.5 (default, Aug 4 2017, 00:39:18) [GCC 4.8.5 20150623 (Re ...

Posted on Fri, 01 May 2020 15:27:32 -0700 by fdost

Python learning notes strings, data types and loops

Multiline comments and multiline programs When three quotation marks' msg 'are used to assign values to variables, they are multiline programs. If they are not assigned, they are multiline comments. Single and double quotation marks can be used to assign values to variables, but there may be single quotation marks or double quotation marks ins ...

Posted on Thu, 30 Apr 2020 17:16:15 -0700 by culprit

Simple application examples of Pop (specifically used in adding, deleting, modifying and querying components) and supplementary knowledge points

1, Let's start with self executing functions 1. What is the immediate execution function? That is, anonymous functions The immediate execution function is Declare an anonymous function Call this anonymous function now 2. An example of pop Click to open a new window. After saving, the page will return without refreshing the data. (click the + ...

Posted on Thu, 30 Apr 2020 15:47:05 -0700 by cybersurfur

Using Nginx and Supervisor to deploy Tornado on Linux server

Nginx installation: sudo apt get install nginx After nginx is installed, you can use your browser to enter 127.0.0.1 to see the welcome page of nginx nginx common commands 1. Sudo service nginx start 2. Sudo service nginx stop 3. Sudo service nginx restart 4. Sudo service nginx reload reloads the con ...

Posted on Thu, 30 Apr 2020 14:34:20 -0700 by Soumen

Django 2.0.1 development framework building

1. Create a blank django project using vs2017 2. Right click env of python environment - install python package and upgrade django to 2.0.1 and setuptools to 38.4.0. The specific environment is as follows: 3. Configure the routing configuration file urls.py, uncomment admin, and modify it as follows. The configuration of Django 2.0 is dif ...

Posted on Thu, 30 Apr 2020 06:30:00 -0700 by ryansmith44

Baidu AI - face recognition

AI is a hot word now. BAT three companies are also on the way of AI open source. At present, baidu is a little ahead in AI. Today, we use the functions provided by Baidu AI open platform to realize the function of face detection. Interface documentation: http://ai.baidu.com/docs#/Face-Python-SDK/top Before you start, you need to apply for an a ...

Posted on Thu, 30 Apr 2020 06:26:49 -0700 by matt1019

Django Channel real time push and chat

Let's take a look at the final effect   Start chatting, input message and click send message to start chatting       Click "get back-end data" to start real-time push Let's take a brief look at Django Channel Channels is a project that uses Django and extends its functions beyond HTTP to handle WebSocket, chat protocol, IoT protoc ...

Posted on Wed, 29 Apr 2020 17:44:34 -0700 by cdog5000