Shell

For an ASP. NET Web Forms application, the requested URL corresponds to a specific physical file (http://xxx.com/default.aspx). Such URLs are tightly bound to specific physical files, bringing many convenient limitations: readability, SEO

In general, most shell command windows, such as Python,scala, some non-relational database, and so on can be ctrl+d or ctrl+z,ctrl+c exit, this is the most effective way.If you do not use the above mandatory exit command, you can also use quit,exit,

One, Service for NFS1. NFS is the abbreviation of the network file system, which is the web filesystem. For shared storage between Linux systems, NFS relies on RPC protocol during file transfer or information transfer, RPC idea: A client is a server,

1.shell IntroductionCommand line: The interface for the user to enter a command, which itself only accepts input and passes the command to the command interpreter.Shell:shell is a command interpreter and a program that provides a line-oriented,

$ File name of the current script $n N is a 1-based number, which represents the first argument, and $ $ for the second argument, and ${10} for the tenth argument $* All positional parameters (all

Tag: Folder file exists and dir file directory parameter is judged#shell判断文件夹是否存在 # If the folder does not exist, create a folder if [!-D "/myfolder"]; Then Mkdir/myfolderfi#shell determine the file, whether the directory exists or has permissions

The Shell implements a simple calculator function with the following script:[[email protected] scripts]# Cat Jisuan.sh#!/bin/bashprint_usage () {printf $ "usage:$0 NUM1 {+|-|*|/} num2\n" Exit 1} #判断传入的参数是不是3个if [$#-ne 3] then print_usagefifirstnum=$1

Vi/etc/logrotate.d/nginx #编辑脚本/usr/local/nginx/logs/*.log/usr/local/nginx/logs/nginx_logs/*.log{Missingok # ignores errors, such as "log file cannot be found" error message. Dateext # The log file after the switch is appended with the date of the

#! /bin/bash#设置只读变量, read-only variables are not modifiableMyurl= "Http://www.baidu.com"ReadOnly Myurl#删除变量, unset cannot delete read-only variablesmyurl1= "Http://www.sina.com"Unset MYURL1#运行shell时会同时存在三种变量#局部变量, environment variables, shell

First look at the formatEcho-e "\033[word background color; text color m string \033[0m"ExampleEcho-e "\033[41;36m Font \033[0m"Where 41 of the position represents the background, 36 of the position is the color of the wordNote:1, the word

The main record is the concurrency and serial execution of commands in the shell script.By default, the commands in the shell script are executed serially, and must wait until the previous command is finished before executing the next command, but

Tag: Terminal message exists time archive consumer Ror mit MailAbout redirectsAdditional redirection operatorsUse set-c collocationPOSIX Shellprovides options to prevent accidental file truncation:Runset-ccommand to openShellthe so-called forbidden

Shell + crontab for log compression archivingCrontab1 file 7 Days . 2 */5 * * * * root/bin/sh /path/archive_atslog. sh >/dev/null2>&1Shell1#!/bin/Bash2 # Author:standby3# Date: .-Geneva- -4# description:archive The live log, keep the lastest7Days .5

For Shell scripting features it isProgramming languages, script type languages, interpreted languages.There are always three execution structures to follow when writing scripts: sequential execution of structures, selection of execution structures,

#!/usr/bin/Envbash## Licensed to the Apache software Foundation (ASF) under one or More# contributor license agreements. See the NOTICEfiledistributed with# this work foradditional information regarding copyright ownership.# the ASF licenses

Linux task ManagementThere are two types of task management under Linux , each of which is one-time and periodic . Disposable is at and the Batch, periodicity is divided into the system regardless of what and user tasks .Disposable Tasks :1.

First, Bash shell overview1. What is BashBASH is the abbreviation for the Bourne Again Shell, developed from the SH-unix system, and is a tool for users to interact with the Linux kernel, using the bash operation kernel to complete the system's use

from Import Models class Person (models. Model): = models. Charfield (max_length=30) = models. Integerfield () def__unicode__(self): # Use the Def __str__ (self) return self.name in Python3$python manage.py Shell>>>from

At the same time, two SECURECRT terminal interfaces have been opened, one of which has entered the Spark-shell and executed in another SECURECRT interface."Spark-shell--master yarn--deploy-mode client [[email protected] test_code]#

Linux classes on the assignment Wednesday, if there is a poor consideration to the place, please do not hesitate to enlighten.Shell Processing Text See this blog for related frequently used commands##假设输入两个參数 is the first to count the number of