Replaced navigation aliases with up() function

.bashrc

@@ -106,11 +106,24 @@ ex ()
 alias doas="doas --"
 
 # navigation
-alias ..='cd ..' 
-alias ...='cd ../..'
-alias .3='cd ../../..'
-alias .4='cd ../../../..'
-alias .5='cd ../../../../..'
+up () {
+  local d=""
+  local limit="$1"
+
+  # Default to limit of 1
+  if [ -z "$limit" ] || [ "$limit" -le 0 ]; then
+    limit=1
+  fi
+
+  for ((i=1;i<=limit;i++)); do
+    d="../$d"
+  done
+
+  # perform cd. Show error if cd fails
+  if ! cd "$d"; then
+    echo "Couldn't go up $limit dirs.";
+  fi
+}
 
 # vim and emacs
 alias vim="nvim"