Rename in DOS cause Syntax Error on Extensionless File

dos, rename

Solution

This should work

ren C:\folder\file file.txt

you only need the path once

What you also could have done is

move C:\folder\file C:\folder\file.txt

With move, you can specify the path for both

Problem

When I use `ren "C:\folder\file" "C:\folder\file.txt"` Got error "The syntax of the command is incorrect." but if I `CD` to the folder and use `ren "file" "file.txt"` No error and works. My question is, how to rename an extensionless file with path

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