Bash : Execute command before redirection as standard input

Question

I would like the output of cat to print the contents of the file poo.txt and then redirect it as stdin to echo. The contents poo.txtis the number 42. i.e.

echo "I eat " < cat poo.txt

should return

I eat 42

Instead the shell returns

-bash: cat: No such file or directory

How would I do this?

I love how the guy who uses the line cat poo has a name that is making fun of IBS. Well played. And Kent has the answer down below. — Wyetro
– Wyetro, Commented Aug 13, 2015 at 15:34

Kent · Accepted Answer · 2015-08-13 15:32:10Z

2

like this?

echo "I eat $(cat poo.txt)"

answered Aug 13, 2015 at 15:32

Kent

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