RACKET_VERSION=5.3.5 RACKET_URL="http://download.racket-lang.org/installers/$VERSION/racket/racket-$VERSION-bin-x86_64-linux-f14.sh" RACKET_INSTALLER="racket-$VERSION.sh" echo "Downloading $RACKET_URL to $RACKET_INSTALLER..." curl -o $RACKET_INSTALLER $RACKET_URL if [[ ! -f $RACKET_INSTALLER ]]; then echo "Error downloading Racket $VERSION from $RACKET_URL" exit 1 fi echo "Running Racket installer" chmod u+rx "$RACKET_INSTALLER" "$RACKET_INSTALLER" <