Can't find key :/
 

Can't find the |-key ...
used for example
$ pacman -Ss xf86-input | less

It would be nice if somebody helped me :)

Found it !
Thx anyway !

Where the | key is depends on your keyboard layout. You set the keyboard layout according to the country you have set your computer to. For example my keyboard layout is en_gb (British English) so the | key is located in the upper left-hand corner of the keyboard and I need to use it while pressing the Alt-Gr key as well.
jdk