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Query whether a file exists.

Cheat Engine Forum Index -> Cheat Engine Tutorials -> LUA Tutorials

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ByTransient
Expert Cheater

Reputation: 5

Joined: 05 Sep 2020
Posts: 240

Posted: Sat Jul 03, 2021 12:14 pm Post subject: Query whether a file exists.

Test if all file types exist in the path you know.
(For windows below codes are working)

Note: The current test code is an alternative to "LuaFileSystem" (lfs.).

Code:

function pathExist(pth,fl1)
local file=pth..fl1
local fl2 = os.rename(file, file)
if not fl2 then
print("File not found")
else
print("file available")
end
return fl2
end

Use:

Code:

--Folder
pathExist([[C:\Users\YourUserName\OneDrive\]],"Pictures")

Code:

--files
pathExist([[C:\Users\YourUserName\Desktop\]],"Sample.txt")

-------------------------------- or check and reName:

Code:

function pathExist(pth,fl1,refl)
local file=pth.."\\"..fl1
local fl2 = os.rename(file, file)
if not fl2 then
print("File not found")
else
if refl=="" then
print("file available")
else
local file1=pth.."\\"..refl
local fl2 = os.rename(file, file1)
print("New File name: "..refl.." success!")
end
end
return fl2
end

--Use check name:

Code:

local cedir=getCheatEngineDir()
--or [[C:\Program Files\Cheat Engine 7.2]]

pathExist(cedir,"lua53-32.dll","")

--Use rename:

Code:

pathExist([[C:\Users\YourUserName\Desktop]],"lost1.txt","lost2.txt")

Enjoy it!

maskelihileci
Cheater

Reputation: 0

Joined: 08 Oct 2016
Posts: 43

Posted: Thu Feb 24, 2022 7:03 pm Post subject:

Can we get the file version?

AylinCE
Grandmaster Cheater Supreme

Reputation: 37

Joined: 16 Feb 2017
Posts: 1530

Posted: Fri Feb 25, 2022 2:05 am Post subject:

maskelihileci wrote:

Can we get the file version?

Code:

function pathExist(fl1,refl)

local fl2 = os.rename(fl1, fl1)
local fl3 = os.rename(refl, refl)

if not fl2 then return print(fl1 .. " not found")
elseif not fl3 then return print(refl .. " not found")
else
vrs1=fl1:match("[^\\]*$")
vrs2=refl:match("[^\\]*$")
if tonumber(vrs1:match("(%d+%p*%d+)")) < tonumber(vrs2:match("(%d+%p*%d+)")) then

print("File: '"..vrs2.."' Newer!")
return vrs2
else
print("File: '"..vrs1.."' Newer!")
return vrs1
end
end
end

local pth=[[C:\Users\YourUserName\Desktop]] --edit YourUserName
rst1=pathExist(pth .. "\\CT_V14.122.txt",pth .. "\\CT_V14.132.txt")
print(rst1)

-->rst1
--File: 'CT_V14.132.txt' Newer!

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