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On 23.03.2010 08:44, Valerio Schiavoni wrote:
> hello,
> i execute a command-line program via popen. This command can receive
> input from stdin or from a file.
> The input parameter in my case is a string. Currently, I wrote the
> string on a temp file, and I specify the name
> of the file as a parameter to the command given to popen.
> Do you know if it's possible to play with stdin so that the string is
> set as the current stdin, so that I avoid to write on disk ?

Just use pipes:

$ echo "Long string"|lua -e 'print("String:","*a"))'