[erlang-questions] how to call os:cmd("ls") from shell?

[Bengt Kleberg]

On 2007-07-11 08:06, Jeremy Chow wrote:
> hi list,
> 
> I fellowed the otp document, but it failed.
> 
> # erl -s os cmd ls

this will not work.
1 erl -s will bundle the arguments (ls) into a list as atoms.
	os:cmd( [ls] ).
2 os:cmd/1 wants a string. os:cmd("ls").


one might think that
erl -run os cmd ls
will work since -run keeps the arguments as strings, but -run also 
bundles all arguments into a single string.

so you have to write an interface module that calls os:cmd/1 for you.


bengt
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