Programmer Think

ls (list files) command is used to display the list of file directories, which is similar to the DOS command dir under Windows system. When executing ls command, only the file name of non hidden file, sorting by file name and the color represented by file name are displayed by default. When no parameters are added, the list information of the c ...

When we use the Linux system, if there is a problem with the network or disk I/O, we will find that the process is stuck. Even using kill -9 can't kill the process. Many commonly used debugging tools, such as strace and pstack, also fail. What's the matter?At this point, we use ps to view the process list. We can see that the status of the stuc ...

NFS file sharing service Introduction: NFS is a network file system A general sharing solution for sharing file system through network developed by sun company; The NFS listening port is tcp 2049 port; RPC service records port information, ip address, etc RPC: remote procedure call protocol; Use nfs file sharing and enable rpcbind servic ...

1. Prepare the virtual machine environment 1.1 problems This case requires the preparation of virtual machine environment. The specific requirements are as follows: Configuring the YUM source server on the springboardPrepare virtual machine master experiment environmentMinimum configuration: 2cpu, 2G memoryUninstall firewall firewalld- ...

Linux - firewall, SELinux rules 1, Firewall firewall rules Function of firewall: release or block some services and ports 1. Firewall Simple operation # 1. View firewall status systemctl status firewalld # 2. Turn off firewall systemctl stop firewalld # 3. Turn on the firewall systemctl start firewalld 2,firewall Direct rule of # 1. Vi ...

Although most of my work is Java related development, I am exposed to Linux system every day, especially after using Mac. I work in the command line environment with black background every day I don't have a good memory. I can't remember many useful linux commands very well. Now I'll summarize them gradually for later viewing.basic operation Li ...

preface Try not to use all the questions. The commands tail, cat, grep and awk are directly executed to get the results. They are all programmed with bash shell statements, so the program is the most efficient The following is my method of learning Shell for reference 1. Take half a day to see the basic usage: Shell tutorial - rookie tut ...

1. Install deepin wine Use the shell method to download various deb packages [1] . The specific operations are as follows: open the terminal in home and run the following statement: gedit install.sh A text edit box pops up, paste the following code into the text box, save and exit. #!/bin/bash mkdir ./deepintemp cd ./deepintemp wget http:/ ...

1, Pod life cycle Like independent application containers, Pod is also considered to be a relatively temporary (rather than long-term) entity. The Pod is created, given a unique ID (UID), scheduled to the node, and runs on the node until it is terminated (according to the restart Policy) or deleted.If a node dies, the Pod scheduled to the ...

1. Preparation before coding 1.1 create a plugin     because unimrcp uses automake for source code compilation management, we also need to add corresponding configuration in addition to adding source code. 1.2 modify configure ac   first edit configure The AC file, added as follows, is actually a macro definition, which w ...