printf "2+2" | bc gives me a syntax error, but echo "2+2" | bc outputs 4, I thought printf would work fine but it didn't, could someone help me understand why?
`printf "2+2" | bc` returns a syntax error, `echo "2+2" | bc` works, how are they handling strings differently?
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Looks good to me.
bcwon't be pleased if there's EOF before the expression line ends.