Series 2600B System SourceMeter® instrument Reference Manual Section 9: TSP command reference
2600BS-901-01 Rev. F/August 2021 9-119
Details
The newfile path may be absolute or relative to the current working directory.
When using this function from a remote TSP-Link
®
node, this command does not accept a file
descriptor and does not return a value.
If the function fails, an error message is returned.
Also see
io.open() (on page 9-119)
io.output() (on page 9-120)
io.open()
This function opens a file for later reference.
Usage
fileVar, errorMsg = io.open("path")
fileVar, errorMsg = io.open("path", "mode")
The descriptor of the opened file
Indicates whether an error was encountered while processing the function
The path of the file to open
A string representing the intended access mode ("r" = read, "w" = write, and "a" =
append)
Details
The path to the file to open may be absolute or relative to the current working directory. If you
successfully open the file, errorMsg is nil and fileVar has the descriptor used to access the file.
If an error is encountered, the command returns nil for fileVar and an error string.
Example
testFile, testError = io.open("testfile.txt", "w")
if testError == nil then
testFile:write("This is my test file")
io.close(testFile)
end
Opens file testfile.txt for writing.
If no errors were found while opening,
writes "This is my test file" and
closes the file.
Also see
io.close() (on page 9-117)