shellcheck /usr/bin/gufw

In /usr/bin/gufw line 2:
if [ $(loginctl show-session $(loginctl|grep $(whoami) |awk '{print $1}') -p Type) = "Type=wayland" ]; then
     ^-- SC2046: Quote this to prevent word splitting.
                             ^-- SC2046: Quote this to prevent word splitting.
                                             ^-------^ SC2046: Quote this to prevent word splitting.


In /usr/bin/gufw line 6:
pkexec gufw-pkexec $c_user
                   ^-----^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
pkexec gufw-pkexec "$c_user"

For more information:
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...