Lua Removing a line in a .txt file

[dudeim]

Hey,

I want to remove a specific line from a file through the use of lua code, but I would have no idea how to do that.

for example I have a file like this:

val 1 = 10
val 2 = 11
val 3 = 12
val 4 = 13
val 5 = 14
etc..

note that the actual numbers don't matter

now how would I for example erase the line of val 3 so it would become like this:

val 1 = 10
val 2 = 11
val 4 = 13
val 5 = 14
etc..

So any idea's?

Edit:
Please note that I want a way to do this in lua, I know I can just backspace it etc.. I am not stupid

Thanks!

 

[Korrex]

You highlight it and press backspace on your keyboard?

 

[dudeim]

I kinda ment through lua forgot to put it in the post sorry

 

[Sir Bananas]

Are you serious? Or is this just a very bad trolling attempt

 

[Milice]

just put 3 to 0 ? -.-

val 3 = 0

god.. simplicity

 

[Sir Bananas]

Or just use the backspace key? LOL

 

[dudeim]

I said it was through the use of LUA

 

[dudeim]

Bump

 

[Krim]

What do you want your script to do? It would probably be easier if you explained it, I think you are making this more complicated then it is.

 

[dudeim]

I did explain it didn't I?

I have this in some text file from my server:

val 1 = 10
val 2 = 11
val 3 = 12
val 4 = 13
val 5 = 14

And I want this (val 3 = 12 to be removed) through lua scripting.

val 1 = 10
val 2 = 11
val 4 = 13
val 5 = 14

 

[Scarlet Ayleid]

This link should have all the information about I/O with LUA you'll need
Programming in Lua : 21.1

 

[dudeim]

I may be blind but I can't find anything in there on how to remove one line in a text file through lua.

 

[kablaff]

Im noob on lua but (in talkactions)-

function onSay(cid, words, param, channel)
	local inf = assert(io.open("data/talkactions/scripts/file.txt", "rw"), "Failed to open input file") -- what textfile to read
	local lines = ""
	while(true) do
	local line = inf:read("*line")
	if not line then break end
	if not string.find(line, "val 3 = 12", 1) then --if string not found
		lines = lines .. line .. "\n"
	end
	end
	inf:close()
	file = io.open("data/talkactions/scripts/file.txt", "w") -what textfile to write
	file:write(lines)
	file:close()
return true
end

 

[Ragimus_Maximus]

dude open it with a text editor and just remove the line ?!

 

[dudeim]

Im noob on lua but (in talkactions)-

function onSay(cid, words, param, channel)
	local inf = assert(io.open("data/talkactions/scripts/file.txt", "rw"), "Failed to open input file") -- what textfile to read
	local lines = ""
	while(true) do
	local line = inf:read("*line")
	if not line then break end
	if not string.find(line, "val 3 = 12", 1) then --if string not found
		lines = lines .. line .. "\n"
	end
	end
	inf:close()
	file = io.open("data/talkactions/scripts/file.txt", "w") -what textfile to write
	file:write(lines)
	file:close()
return true
end

Thanks mate that works

dude open it with a text editor and just remove the line ?!

I kinda wanted it to happen like automaticly when some specific thing happens why else would I want to do it in lua lol...