How to clear the current command line in Linux or Mac terminal?
For example, if you typed a bunch of instructions wrongly, and you want to clear them,
Be sure to do the same as I used to, use the reverse key to kill slowly, we can use ctrl+u
Remove the entire command line directly.
If you press ctrl+u to delete the entire line command,
If you want to restore , you can press ctrl+y .
I think most of the current Linux supports Access Control List (ACL). With filesystem ACLs enabled, We can set additional permissions to different users or groups. This allows us to set the file system permissions of different users more freely. Go straight to the command.
On the new version of RHEL 7/CentOS 7 or Fedora, we can check the status and make adjustments through timedatectl.
Today I will talk to you about X, not iPhone X, nor X-Men, but X Window System, He is the main graphical interface display component of the current Linux system. Since it is very easy to expand and modularize, it has been used since it was established in 1986. The X Window system adopts the Client/Server architecture, which splits the application program and the display into two. The application program of X Windows is usually called X Client, and the display is the well-known X Server. The X client communicates with the X server through the X protocol (X protocol), which is an asynchronous network communication protocol.
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