how to run files in powershell code example

Example 1: how to make file in powershell

echo $null >> filename.type

Example 2: powershell script run

./myscript.ps1  //if is in the current directory
c:/scripts/myscript.ps1  //if you want to use the full path
&"C:/my path with space/myscript.ps1"  //if your path has spaces