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Only Do What Only You Can Do

143. backticks

JavaScript

var exec =
  require('child_process').exec;
var f = function(err, fout, ferr) {
   output in fout
};
var child = exec('ls', f);

Lua

f = io.popen("ls")
s = f:read("*a")




Io

(System runCommand("ls")) stdout





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