Programmer Think

1.led management 1.openbmc-hollywood/common/recipes-utils/openbmc-utils/files/i2c-utils.sh. SYSFS_I2C_ROOT="/sys/bus/i2c" SYSFS_I2C_DEVICES="${SYSFS_I2C_ROOT}/devices" SYSFS_I2C_DRIVERS="${SYSFS_I2C_ROOT}/drivers" # # Return the given i2c device's absolute sysfs path. # $1 - i2c device in <bus>-00<add> format (for example 0 ...

catalogue Introduction to set command Using the set command 1. Execute the set command without options 2. Basic grammar 3. Introduction to options -o +o -e or -o errexit -n or -o noexec -u or -o unset -x or -o xtrace -o pipefail example Introduction to set command The set command is a command that beginners in the shell seldom t ...

preface Christmas is coming! Yikoujun is here to wish all fans a merry Christmas! I wish all the students who take the postgraduate entrance examination a golden title! I wish my friends who are looking for a job get a hot offer! I wish all bosses a lot of money in the New Year! Here, I drew a Christmas tree with a shell script! Let's take a ...

The local music of some Bluetooth audio devices needs to use the sbc format, such as the Bluetooth headset of hengxuan (BES). If you are engaged in the development of BES platform, you must know it very well. Their local audio uses the sbc format in the form of txt, and it is also the sbc format of mono 16 bit and 16KHz sampling rate Realizati ...

Shell overview Getting started with Shell scripts 1. Script format 2. Create a Shell script: HelloWorld tdx96@ubuntu:~/datas$ touch hellworld.sh tdx96@ubuntu:~/datas$ vim hellworld.sh Input: #!/bin/bash echo "helloworld today" Execution: tdx96@ubuntu:~/datas$ sh hellworld.sh helloworld today perhaps tdx96@ubuntu:~/datas$ bash h ...

prefaceAfter translating the official documents of TypeScript, I used VuePress to build a blog and realized the automatic deployment of GitHub and Gitee Pages, but I finally decided to build my own website. In the process of building the website, linux commands are indispensable. Therefore, this article writes a basically sufficient Linux comma ...

❤️ Welcome to subscribe Learning python from actual combat Column, using python to realize practical cases in various directions such as crawler, office automation, data visualization and artificial intelligence, which is interesting and useful! ❤️ More introduction to boutique columns can be found here The so-called poetry and distance, h ...

A Linux tomcat automatic deployment shell script Because Jenkins was installed on the server to realize automatic deployment failed, we found an alternative method and copied an automatic deployment script on the Internet. This script is written in shell language, and I have never been in contact with shell programming before, so I try to d ...

Author Yu ZiyiSource: Ali technical official accountI. IntroductionThis article is an introduction to the principles of V8 compilation, which aims to give you a perceptual understanding of the parsing process of JavaScript in V8. The main writing process of this paper is as follows:Interpreter and compiler: introduction to basic knowledge of co ...

SHELL script - variable SHELL script introduction Programming language classification Compiled language Before the program is executed, it needs to be compiled into machine language and run the compiled results directly. The program has high execution efficiency, depends on the compiler, and has poor cross platform performance. Such as C, C ...