To copy text to the clipboard from the Linux command line in Xorg, we need to install a nice utility called xclip. This will allow us to copy text from the terminal to the clipboard.
[email protected]:~$ sudo apt install xclip
Then create the bash alias we need for this to work.
[email protected]:~$ alias xclip="xclip -selection c"
Now copy some sample text to the clipboard.
[email protected]:~$ echo "Hello Testing." | xclip
That is how easy this is to do. This way it is easy to redirect output of a command or the contents of a text file to the clipboard. Very useful for those of you that use the terminal a lot.