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Brief answer 1. Count the number of files under / var/log. find /var/log/ ! -type d |wc -l //Or l l - R / var / log / | egrep "^ [SL -] [RWX -] {9}" | WC - L 3. Write a script to judge which ip address is currently online in the 192.168.1.0/24 network, and which ip address can be ping ...

It will take about three minutes to read this article. In general, reflection is used to dynamically obtain information such as object types, properties, and methods. Today, I'll take you to play with reflection to summarize various common operations of reflection and find out if there's anything you don't know. Get members of type The GetM ...

Detailed explanation of linux shell command line options and parameter usage In bash, there are three ways to handle command line arguments - direct processing: use $1, ,...,$n for parsing - getopts: the case of a single character option (for example: - n 10 -f file.txt Etc.) - getopt: can handle single character options or long opti ...

Simple command line implementation based on STM32 Hi,long time no see. I looked at the atomic usmart and lwip official shell, and found that they all had one thing in common. After identifying the first command, I began to find the callback, and did not count the argc and argv. There are also many peo ...

2019-2020-2 network countermeasure technology 20174326 principle and practice of EXP3 in Danzeng liecuo 1. Experimental environment One PC, installed with win10 system, as the target machine for actual measurement kali virtual machine installed as attack machine The kali virtual machine is installed with the vector evaluation ...

Spring Shell Sometimes, in order to facilitate the development and testing of the server, it does not need a beautiful user interface, just use a simple command window. As follows: Here is a quick, convenient, easy-to-use and simple interactive command window development component Spring Shell Yes, it's in spring ecology again. Source address ...

background Alibaba cloud's ECS server just bought is going to set up a website of its own. First install the Redis service. Download Redis Download address: https://redis.io/download Current version of Redis 6.0.1 Upgrade gcc #Check whether the gcc version is above 5.3. CentOS 7.6 installs 4.8.5 by default [root@liukai-ecs-01 system]# gcc -v # ...

Recently, a data statistics system has been designed. There are hundreds of data statistics dimensions in the system, and the indicators of these data statistics may be adjusted at any time. If the API design of data statistics is implemented one by one based on Java coding, the workload is large and the maintenance cost is high. Finally, it is ...

Test file: https://lanzous.com/b07rlg5gd   Misc Sign in After answering the question and entering token, it is visible in the console.   flag{32c7c08cc310048a8605c5e2caba3e99}   crypto boom First MD5 decryption 46e5efe6165a5afb361217446a2dbd01 to get en5oy Then solve the equations: x=74,y=68,z=31 Solving ...

Ansible Tests Details and Use Cases   Host Planning   Add user account Explain: 1. Login accounts used by operations and maintenance personnel; 2. All businesses are placed under / app / in the "home directory of yun users" to avoid the disorder of business data; 3. This user is also used by ansible because almost all production en ...