Utilise `` plutôt que $() dans bin/prezbuilder.

bin/prezbuilder

@@ -11,7 +11,7 @@ checkdir() {
     echo ""
     return 0
   fi
-  local DIR="$(readlink -f $1)"
+  local DIR=`readlink -f $1`
   if [[ ! -d "$DIR" ]]; then
     echo "$1 is not an existing directory" >&2
     usage
@@ -28,8 +28,8 @@ case "$1" in
     ;;
 esac
 
-export SRC="$(checkdir ${2:-src})"
-export OUTPUT="$(checkdir ${3:-public})"
+export SRC=`checkdir ${2:-src}`
+export OUTPUT=`checkdir ${3:-public}`
 
-BASE="$(dirname $(readlink -f $0))/.."
+BASE=`dirname $(readlink -f $0)`/..
 exec "$BASE/node_modules/.bin/gulp" --cwd "$BASE" "$COMMAND"