Creating a link to Windows home under WSL

make-win-home-link

# -L looks for the argument as a soft link
if [ ! -L "\$HOME/winhome" ]; then
    # shellcheck disable=SC2016 - $env inside single quotes generates a warning. shellcheck
    #    does not have enough context to understand we want to pass the $ to 
    #    the command.
    # The powershell command prints the value of the environment variable USERPROFILE from Windows,
    #    which is the home dir. In my case 'C:\Users\matth'.
    $ The wslpath converts Windows paths to WSL paths. In this case:
         'C:\Users\matth' => '/mnt/c/users/matth'
    ln -s "\$(wslpath "\$(powershell.exe -NoProfile -Command '\$env:USERPROFILE')")" "\$HOME/winhome"
fi