run octave script from command window with variable length arguments

Question

I have a octave script (script.m) file with the following code:

if length(argv()) > 0
     s = argv(){1};
else
     s = "";

In octave command window, pwd is set to the script directory. From command window, how can I run script.m with one, two or no arguments?

I am using Octave (GUI) in windows.

Andy · Accepted Answer · 2017-01-31 07:12:22Z

1

An endif is missing at the end but here we go:

if length(argv()) > 0
  s = argv(){1};
else
  s = "";
endif
s

With no argument:

$ octave script.m
s =

With one argument:

$ octave script.m foobar
s = foobar

With two arguments (the second goes to nirvana because you don't use it in your script):

$ octave script.m foobar baz
s = foobar

answered Jan 31, 2017 at 7:12

Andy

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3 Comments

Shadekur Rahman Over a year ago

I am using Octave (GUI) in windows. Here it says that 'octave' is undefined

Andy Over a year ago

If you browse to your Octave installation folder (I guess it's c:\Octave) you'll'' find a octave-cmd.bat or vbs. 'octave´ should run from these directly. If you want to run octave from a windows "cmd" window you'll have to set the PATH so that it includes the /bin directory. Have a look at the before mentionen .bat and .vbs, they show you how to set it

Shadekur Rahman Over a year ago

actually, I was using octave.bat. The error that I am getting is from that window.

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