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This question already has an answer here:

I just started a short video course on Linux and kind of get the use and function of stdin and stdout. I saw on the course though that the instructor used cat < [nameOfExecutable]. I tried looking around though I can't seem to find what its call and what's for (possible due to my lack of fundamentals).

What is difference does it make adding the "<" symbol?

Let us say for example: cat < [nameOfExecutable] vs regular cat [nameOfExecutable]?

marked as duplicate by Jeff Schaller, Romeo Ninov, Stephen Kitt linux Jun 14 '18 at 5:18

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  • Thank you Jeff for editing my messages and helping me credit the correct person properly. Cheers! – Fukkatsu Jun 14 '18 at 0:53
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I think I answered my own question using slm’s response on this thread: Why does the less-than sign not work as a replacement for cat in bash?

Seeing what happens behind the curtain opened my eyes on what's really going on.

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