added Linux support

neofetch

@@ -1273,8 +1273,13 @@ getsong () {
 getresolution () {
     case "$os" in
         "Linux" | *"BSD")
-            type -p xdpyinfo >/dev/null 2>&1 && \
+            if type -p xrandr >/dev/null 2>&1; then
+                resolution=$(xrandr --nograb --current | awk 'match($0,/[0-0]{2,3}.[0-9]{2}\*/) {printf $1 " @ " substr($0,RSTART,RLENGTH) "Hz, "}')
+                resolution=${resolution//\*}
+
+            elif type -p xdpyinfo >/dev/null 2>&1 && \
                 resolution=$(xdpyinfo 2>/dev/null | awk '/dimensions:/ {printf $2}')
+            fi
         ;;
 
         "Mac OS X")