if(process.platform=='linux'){ var sys = require('util'); var exec = require('child_process').exec; var child; child = exec("cp src/qeda /etc/bash_completion.d/qeda", function (error, stdout, stderr) { console.log('stdout: ' + stdout); console.log('stderr: ' + stderr); if (error !== null) { console.log('exec error: ' + error); } }); }