Shell

Thunder Official Forum (DISCUZ) by cloud platform detected a SSRF loophole, the attacker through ssrf successful rebound shell, the flaw exists in a remote picture download interface, did not valid for the validity of the URL detection. This

I'm obsessed with the Shell, and I like to watch the characters jump in the Black Console interface, and strangely, I didn't become a Linux/unix programmer, but just a bad egg to write a CGI program. What do people call "PHP programmers"?

Introduces a powerful analysis of the network shell script, this script is split from the ezhttp, feel the need to introduce separately. Screenshot of script run effect: This script contains features such as: 1, real-time monitoring of any

Net-snmp is a free, open source SNMP implementation, formerly known as UCD-SNMP. Many SNMP are used after its installation, as a monitoring treasure and Aliyun system information monitoring. Let's share the Linux shell script that implements SNMP

Linux anti-select Delete file The easiest way is to # shopt-s Extglob (open Extglob mode)# RM-FR! (File1)If you want to exclude multiple, you can do this:# RM-RF! (File1|file2) LINUXRM Delete Other file method totals outside the specified fileFirst,

"13.1" What is shell script. 1 shell script is a "program" written using the function of the shell, which uses a text file to write some shell syntax and commands (including external commands) inside, with regular representations, pipeline

Preface A blog has been written before "Jenkins"--jenkins+jmeter timing test Only one script was executed in the shell and the corresponding JTL file was generated in the previous blog and analyze the data. There are times when we may need to test

The first step: Connect to the Linux service via Xshell or other tools,Step Two: Create a script: Touch se.shStep three: Enter I to enter the following command on behalf of the start input:The script is as follows: (SQL statement can be any complex

Learn a bash script today and see that there is a: bin= ' dirname '(dirname filename is the directory where the file is exported, and $ is the file name of the bash file, which is generally used in bash to enter the directory where the script is

I. Special symbols in the shellWhile you are learning Linux, you may have been exposed to a special symbol, such as "*", which is a wildcard symbol that represents 0 or more characters or numbers.Special characters that are commonly used:1, *

8.6 pipe symbol and job controlpipe: Give the result of the previous command output to the following command | SeparatedCat 1.txt |wc-l; Cat 1.txt |grep ' aaa 'CTRL Z pauses a taskJobs view the tasks in the backgroundBG [ID] Transfer tasks to the

What is a shell script. First, it is a script and cannot be used as a formal programming language. Because it's running in the shell of Linux, it's called a shell script. To be blunt, a shell script is a collection of commands. For example, I want

Random number between 0-1# awk ' Begin{srand ();p rintf "%.16f\n", Rand ()} 'Random number between 0-20# awk ' Begin{srand (); Sum=rand () *21;printf ("%d\n", Sum)} '# echo ' Expr $RANDOM% 21 '# echo ' Expr $ (expr $ (date +%n)% 20) + 1 '# echo '

Bash shell scripting Getting Started (iii) cycleWhat is loop execution?To run a code segment repeatedly multiple timesHow many times to run repeatedly:Number of cycles known beforehandNumber of cycles unknown beforehandThere are entry conditions and

#if Else statement, divided into three kinds: if...fi; If ... else ... fi; If ... elif...else...fi#if Else FI statement syntax#if [Expression]#then# Statement to being executed if expression is true#else# Statement to being executed if expression is

The main contents of this section:Use shell scripts to monitor the load, CPU, memory, hard disk, and user logins of Linux systems.One, Linux system alarm mail script# vim/scripts/sys-warning.sh#!/bin/bash#site:www.jquerycn.cn# Monitoring System load

The main interface between the operating system and the outside is called the shell. The shell is the outermost layer of the operating system. The shell manages your interactions with the operating system: waiting for your input, explaining your

Chapter Three: Basic bash shell commandsThe Bash program uses command-line arguments to modify the type of shell being started Parameters Describe -C string Read the commands from a string and process them

$ CD ' DirName $ ' and some special usages of pwd%/* shell variables in the command line state simply execute $ CD ' DirName $ ' is meaningless. Because he returns the "." of the current path.This command, written in a script file, returns the

Use bin/hadoop FS to call the File System (FS) Shell Command. All FS shell commands use the URI path as the parameter. The URI format isScheme: // authority/path. For HDFS file systems, scheme isHDFSFor the local file system, scheme isFile. The