Read from a file
How to open and read a file from disk, either one line at a time, or read the whole file at once
-- How to read a whole file -- get a file handle local f = io.open('test') -- read the whole file f:read('*a') -- close the file handle f:close() -- How to read one line from a file -- get a file handle local f = io.open('test') -- read one line from the file f:read('*l') -- read another line from the file -- default is to read a one line f:read() -- close the file handle f:close()
There are three steps to read a file: Open the file, use the returned file handle to read the file, then close the file. You can either read the whole file contents, or just one line at a time.
How to use the snippet:
- Paste the code for the desired file reading method into your script