Section 11: TSP command reference Series 3700A System Switch/Multimeter Reference Manual
11-256 3700AS-901-01 Rev. D/June 2018
Details
The path of the file to open may be absolute or relative to the current working directory.
When accessed from a remote node using the TSP-Link network, this command does not accept a
file descriptor parameter and does not return a value.
If the function fails, an error message is returned.
Also see
Script examples (on page 9-5)
io.input() (on page 11-254)
io.open() (on page 11-255)
io.read()
This function reads data from the default input file.
Usage
data1 = io.read()
data1 = io.read(format1)
data1, data2 = io.read(format1, format2)
data1, ..., dataN = io.read(format1, ..., formatN)
The data read from the file
The data read from the file
The data read from the file; the number of return values matches the number
of format values given
A string or number indicating the type of data to be read
A string or number indicating the type of data to be read
A string or number indicating the type of data to be read
One or more entries (or values) separated by commas
Details
The format parameters may be any of the following:
Returns the whole file, starting at the present position; returns an empty string if it
is at the end of file
Returns the next line, skipping the end of line; returns nil if the present file
position is at the end of file
Returns a string with up to N characters; returns an empty string if N is zero (0);
returns nil if the present file position is at the end of file
Any number of format parameters may be passed to this command, each corresponding to a returned
data value.
If no format parameters are provided, the function will perform as if the function was passed the value
"*l".
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