Improve command line for starting qbsbuild Docker image

From here:
Linux Containers

This (command for Linux/Bash):
docker run -it -v $PWD:/qbs -w /qbs qbsbuild/qbsdev:stretc
And this (command for Win/PowerShell):
docker run -it -v %CD%:/qbs -w /qbs qbsbuild/qbsdev:stretch

Can be just one command (Bash/PowerShell):
docker run -it -v ${PWD}:/qbs -w /qbs qbsbuild/qbsdev:stretch

Lesser is better! )