[all] Link examples files (instead of cp)

setup_ubuntu.sh

@@ -16,13 +16,13 @@ if [ $SHELL != "/bin/zsh" ]; then
 fi
 
 for filename in zsh/.*_debian.example; do
-    cp $filename ${filename:0:-15}
+    ln -Tsfv $PWD/$filename $PWD/${filename:0:-15}
 done
 
 for filename in tmux/.*_debian.example; do
-    cp $filename ${filename:0:-15}
+    ln -Tsfv $PWD/$filename $PWD/${filename:0:-15}
 done
 
 for filename in nvim/.*_debian.example; do
-    cp $filename ${filename:0:-15}
+    ln -Tsfv $PWD/$filename $PWD/${filename:0:-15}
 done