Windows Powershell Basic Questions - new user - powershell

Question

When trying to open a file with text editor VIM, I am unable to open the file unless VIM (shortcut) is in my current working directory. As an example, I am able to write start firefox to open a firefox window. However, start vim C:\filepath\filename.txt does not work unless a vim shortcut is in my current directory. How do I get around this?
Also, is there a way to have a program execute a file in the current working directory without having to reference the entire file path? For example instead of Start-Process vim C:\Users\User\Desktop\File\file.txt is there an available path shortcut like Start-Process vim ~\file.txt with ~ representing the current working directory?

Answer 1

The OS need to determine the full path of the exe, no matter what.
There's 2 ways that it will happen.
You're calling the executable from it's working directory
The executable location is in the Windows environment variable.
You can view the PATH variable content through this simple statement
$env:Path -split ';' | sort
You sill see that the Firefox path is listed there, but not the one from VIM.
That's why the former can be started by it's executable name and the latter require the full path.
You need to add VIM directory to your PATH variable if you want to be able to call it just by typing vim
Otherwise, if you have restricted access or don't want to edit that variable, you can also set a $vim variable, then invoke it whenever you want to call the executable.
Regarding the second part of your question
Powershell use the dot as a reference to the current directory .\file.txt.
You can also just specify the filename without anything else file.txt.
Both backslash \ & slash / work for filepath so .\file.txt and ./file.txt are both valid ways to reference the file.
Use ..\ to reference the parent directory (e.g. ..\file.txt)
$Vim = "c:\Path\To\Vim.exe"
& $vim "file.txt"
& $vim ".\file.txt"
#Forward slash also work for paths
& $vim "./file.txt"