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lsin a script, that’s a sign you’re doing something wrong, and you’d probably benefit more by avoiding thelsinvocation altogether than by optimising it.lsandgrepyou're thinking, you might get better results by switching to a programming language with better tooling for data processinglsto do operation on files in scripts, Why not parsels(and what to do instead)?fork()+execve()part of running a new executable is much, much slower.