Copy text to both normal X clipboard and primary selection (middle mouse button)

copy-sth-to-xclipboard.sh

# Note the -f option for xclip:
echo foo | xclip -f -i -selection clipboard | xclip -i -selection primary

# Short form:
echo foo | xclip -f -selection c | xclip



# Before I discovered xclip -f, I tried this which did not work in my Bash 5:
echo foo | tee >(xclip -i -selection clipboard) | xclip -i -selection primary

# Before that, I used this snippet:
declare tmp
tmp=$(mktemp)
echo foo > "$tmp"
xclip -selection c < "$tmp"
xclip -selection p < "$tmp"