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Execute the command sudo useradd --help The error is reported as follows:fuyun is not in the sudoers file. This incident will be reported. Reason: the user does not have root permission temporarily Solution: modify sudoers file Switch to the root user, su -, run the visudo command, which is used ...

After the system is installed, it needs to be backed up. How to restore it to other SD cards? The environment is Ubuntu 18.04, jetson system U disk, which is inserted in the form of U disk. I. backup 1. First use the following command to confirm the device number of the u disk to be backed up sudo fdisk -l I'm sure it's / dev/sdc 2. Establ ...

Create user sudo useradd --system --home /opt/tomcat --shell /sbin/nologin --comment "tomcat user" --user-group tomcat Deploying tomcat Unzip the installation package: tar -xvf apache-tomcat-9.0.21.tar.gz Mobile decompression package: sudo mv apache-tomcat-9.0.21 /opt/tomcat/apache-tomcat-9.0.21 To create a soft link: sudo ln -s /opt/tomcat/ ...

Part II: configuration of ROS network communication brief introduction Local area network configuration Using dandelion VPN to realize remote networking brief introduction This article includes two aspects: On the one hand, it is the simplest LAN, which can be completed without too much configur ...

Summary of fabric 1.4 environment construction 1. Install dependent tools 1.1 install Git sudo apt update sudo apt install git 1.2 install Curl sudo apt install curl 1.3 installing docker //To check whether Docker has been installed on the system: docker --version //Not installed. Use the fo ...

I'm so tired of the touchpad that I need to beat... When using a notebook, you often accidentally touch the touch screen, which causes the cursor to run around. Method 1: Very simple, just type sudo modprobe -r psmouseIf you want to open it, just remove - r. Of course, you can also write a file with the bash you learned recently, and then swit ...

1. Download the opencv3.2.0 installation package and go to the official website: http://opencv.org/releases.html , select the source of version 3.2.0, and download opencv-3.2.0.zip. 2. Install some libraries required by opencv, and try to install them as much as possible: sudo apt-get install build ...

1. Configure gitlab runner on the computer Reference document https://docs.gitlab.com/runner/install/osx.html Installation: sudo curl --output /usr/local/bin/gitlab-runner https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-darwin-amd64 add permission sudo chmod +x ...

jprofile installation Linux Server InstallationOfficial website address Choose: After downloading, upload to the server under test under / opt, decompress, renamed: jprofiler11 Local Installation Clientmac Cracked Edition Download Address Download and install according to the tutorial on the web p ...

Hearthbeat, heartbeat, as its name implies, can be used to periodically detect whether the service is functioning properly. Hearthbeat supports ICMP, TCP and HTTP, as well as TLS, authentication and proxy. Hearthbeat can work seamlessly with Logstash, Elastic search and Kibana. Install Hearthbeat, add s ...