Force order of functions and aliases

rc/01-functions.sh

@@ -34,3 +34,8 @@ function prepend_path() {
 function uniq_path() {
   echo "$PATH" | tr ":" "\n" | awk '!seen[$0]++' | tr "\n" ":" | sed -r 's/:+/:/g' | sed -r 's/^:|:$//g'
 }
+
+function can_run() {
+  local application="$1"
+  command -v "$application" > /dev/null
+}