1. Log in to the system as root.
2. Switch to the /home directory and view the current folder. Usually, the folder name represents a user.
3. Or use the following command to view the user cat/etc/passwd | grep-vnologin | grep-vhalt | grep-vshutdown | awk-f ":"'{print $1"|" $3 "|" $4}' | More information.
4. You can use the userdel command to delete users and enter userdel-h to view the help command.
5. Use userdel-r to delete the user and the corresponding folder, and enter the command userdel-rhundsun to delete the hundsun user.
Linux command closes the program?
How does linux terminate the process command? Let's have a look.
1. Open the linux system and right-click on the blank space of the linux desktop.
2. In the pop-up drop-down option, click Open Terminal to enter the command line.
3. Open the Python program in the terminal window.
4. When the program is running, press the shortcut key CRTL+C to terminate the instruction program.
How to kill a locked process in linux?
First, use the ps-ef command to determine the PID of the process to be killed, and then enter the following command: #kill-pid Note: The standard kill command can usually achieve the goal.
Terminates the problematic process and releases the resources of the process to the system. However, if a process starts a child process and only kills the parent process, the child process is still running, so it will still consume resources. In order to prevent these so-called "zombie processes", we should make sure to kill all the child processes before killing the parent process. * the PID or PPID#ps-ef|grephttpd option #kill-lPID-l that terminates the process tells the kill command to end the process as if the user who started the process had logged off. When using this option, the kill command also attempts to terminate the remaining subprocesses. But this command is not always successful-you may still need to manually terminate the child process before terminating the parent process. Send a $ TERM signal to the parent process in an attempt to terminate it and its child processes. # kill-$ TERM ppid * killall command killall command terminates all processes in the same process group. It allows you to specify the name of the process to be terminated instead of PID. # killalhttpd * Stop and restart the process Sometimes you just want to simply stop and restart the process. As follows: This command causes the slow execution process of Linux to shut down and then restart immediately. This command is very convenient when configuring the application, and can be executed when the process needs to be restarted after modifying the configuration file. Linux restart system shortcut key?
The common command is reboot, which is mild and will stop all running processes before shutting down and restarting.
Power-off and power-off commands are equivalent to directly cutting off the power supply.
How does linux pause?
Linux Stop Command Method The fastest way to stop the currently executing command is to press the key combination "Ctrl+C". This method is only effective if the user can control the program from the virtual console. Linux Stop Command Method 2 Another way to stop the wrong program is to kill its process. Please follow the following methods:
Enter the "ps" command to get the PID of the process. This command requires that you are the person running the program or the root user. If you are root, enter the "ps-aux" command to view all processes, regardless of their owners.
Find this error process in the list. Because the name of the program is listed at the far right of the list, you can usually find it at a glance.
Please write down the leftmost ID number of the process status line in the ps command output list.
Enter "killID" to terminate the process.