Installing Linaro on Ubuntu 18.04

[not you]

I am following this guide to install Linaro on my Ubuntu 18.04 machine:
https://www.digikey.com/eewiki/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-ARMCrossCompiler:GCC

Unlike the guide, I want to have the latest Linaro version.  Thus, these are the commands I use:

sudo apt-get install aptitude

sudo apt-get install gcc-multilib

wget -c https://releases.linaro.org/components/toolchain/binaries/latest/arm-linux-gnueabihf/gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf.tar.xz --no-check-certificate

tar xf gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf.tar.xz

export CC=`pwd`/gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-

{CC}gcc --version


It fails at the last line, complaining:

{CC}gcc: command not found

Can somebody enlighten me?  What have I done wrong?  This process previously failed when I used Linaro 6.4.1 as in the guide.  Thank you so much in advance.

[Robert Nelson]

Did you stay in the same terminal window? The way i've written it,
export only stores CC in the current running instance..

So run:

echo ${CC}

If it comes back blank, you didn't export it..

Regards,

--
Robert Nelson
https://rcn-ee.com/

[not you]

 I left out the `$` operator.  Anyways, after executing the `echo`, `${CC}gcc --version` works perfectly.  What magic does `echo` bring?