Phpunit在Windows子系统上无法正常运行

I've install phpunit on to my windows subsystem for linux:

wget https://phar.phpunit.de/phpunit-7.1.1.phar
chmod +x phpunit-7.1.1.phar
sudo mv phpunit-7.1.1.phar /usr/local/bin/phpunit

I can see that phpunit exists in /usr/local/bin/phpunit

When I run php phpunit --version from /usr/local/bin/phpunit it runs correctly.

However from anywhere else I get the following error:

 Could not open input file: phpunit

I also see this error when I run just phpunit --version

-bash: /usr/bin/phpunit: No such file or directory

php /usr/local/bin/phpunit --version

This form works..., actually I have php and phpunit installed via apt and they install into /usr/bin... so I actually used

$ php /usr/bin/phpunit --version

PHPUnit 5.1.3 by Sebastian Bergmann and contributors.