io.popen (prog [, mode])

Starts program prog in a separated process and returns a file handle that you can use to read data from this program (if mode is "r", the default) or to write data to this program (if mode is "w").

This function is system dependent and is not available on all platforms.

EVERYTHING
Input and Output Facilities
file:close
file:flush
file:lines
file:read
file:seek
file:setvbuf
file:write
io.close
io.flush
io.input
io.lines
io.open
io.output
io.popen
io.read
io.tmpfile
io.type
io.write

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