echo "Your error message here" >&2
This is a normal echo (which goes to stdout), however the >&2 (which is shorthand for 1>&2), means 'mix the stdout to the stderr'. 1 is stdout, and 2 is stderr here.
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echo "Your error message here" >&2
This is a normal echo (which goes to stdout), however the >&2 (which is shorthand for 1>&2), means 'mix the stdout to the stderr'. 1 is stdout, and 2 is stderr here.
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