Inspired by Qiita's article (I lost sight of it), "You can use Linux as an engineer!", I started studying Linux is indebted to me. I succeeded in building a virtual machine with VirtualBox and thought that it was a good start, but I got stuck with "4.4 pipe".
** I can't hit the "pipe (|)"! ** **
Even if I set the commands and files that came out after searching for "linux pipe not hit", all failed. I knew there was a problem with the keyboard layout settings ...
It was solved by force.
Specifically, I set the language to "** English (United States) **" in "Applications-> System Tools-> Settings-> Regions and Languages" at the top left of the desktop screen.
Then, I excluded all Japanese from the input source (keyboard) (select and press-), and only "** English (US) " (press + to select). You can see the keyboard layout by pressing the keyboard icon at the bottom left of the input source, but if you look at the " English (US) **" keyboard, there is a pipe just to the left of the Enter key.
After the above settings, reboot and type ** Shift +] ** in the terminal and a pipe will appear!
It's just a first aid, but you can continue studying with it!
That's what to do when you can't enter a pipe in CentOS7 ^^