add cuda to wsl on my laptop

cfg/loop.sh

@@ -19,9 +19,9 @@ function add2env()
         return
     fi
 
-    ndir=${2%/}                  # remove trailing space
-    if [ -d $ndir ] ; then       # if the second arg is an existing folder
-        if [ -z ${!1} ] ; then   # if the first arg is an empty env variable
+    ndir=${2%/}                    # remove trailing space
+    if [ -d "$ndir" ] ; then       # if the second arg is an existing folder
+        if [ -z "${!1}" ] ; then   # if the first arg is an empty env variable
             #echo $1 is empty
             eval export $1="$ndir"
         else

cfg/plankton/cuda.profile

+add2env PATH "/usr/local/cuda/bin"
+add2env LD_LIBRARY_PATH "/usr/local/cuda/lib64"