error in executing lua code in vscode powershell terminal - powershell

i normally execute my lua files in the terminal with lua file-name.lua. i recently found out that you could also execute the code from terminal using lua53 .\file_name.lua where the lua version was 5.3
the lua version that im using is 5.1 so i entered lua51 .\file_name.lua on my terminal but i was given this error instead
lua51 : The term 'lua51' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the
name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ lua51 .\main.lua
+ ~~~~~
+ CategoryInfo : ObjectNotFound: (lua51:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException

the lua version that im using is 5.1 so i entered
lua51 .\file_name.lua
on my terminal but i was given this error instead
try to write this
lua5.1 .\file_name.lua

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At line:1 char:1
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At line:1 char:61
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If it help - I'm learning from the Linkedin Learnign, so I'm just trying to do what they say ;)

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At line:1 char:1
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