fix: condition in linux without display

Author: mateuscomh

README.md

@@ -6,7 +6,7 @@
    ██║   ╚██████╔╝╚██████╔╝██║  ██║███████╗
    ╚═╝    ╚═════╝  ╚═════╝ ╚═╝  ╚═╝╚══════╝     
  ```
-[![Release](https://img.shields.io/badge/release-2.3.4-brightgreen)](https://github.com/mateuscomh/yoURL/releases)
+[![Release](https://img.shields.io/badge/release-2.3.5-brightgreen)](https://github.com/mateuscomh/yoURL/releases)
 [![Build Status](https://github.com/mateuscomh/yoURL/actions/workflows/shell-linter.yml/badge.svg)](https://github.com/mateuscomh/yoURL/actions/workflows/shell-linter.yml)
 
 # URL shortner and upload files direct from terminal

yourl.sh

@@ -8,7 +8,7 @@
 #  Deps: qrencode/zbar, curl, xclip, pbcopy (MacOS)
 #----------------------------------------------------|
 
-version='2.3.4'
+version='2.3.5'
 
 logo="
 ██╗   ██╗ ██████╗ ██╗   ██╗██████╗ ██╗     
@@ -66,7 +66,7 @@ case $(command -v xclip &>/dev/null && echo "xclip" || echo "pbcopy") in
 xclip)
 	if grep -iq Microsoft /proc/version; then
 		printf "%s" "$REPLY" | clip.exe
-	elif command -v xclip >/dev/null; then
+	elif command -v xclip >/dev/null && [ -n "$DISPLAY" ]; then
 		echo -n "$REPLY" | xclip -sel copy
 	fi
 	;;