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#!/bin/sh
# erl -version prints ERTS version, not OTP release — use system_info instead
case "$1" in
erlang)
otp_major="${2%%.*}"
timeout 60s erl -noshell \
-eval "V = erlang:system_info(otp_release), io:format(\"OTP ~s~n\", [V])" \
-s init stop 2>&1 | \
grep -qF "OTP ${otp_major}"
;;
esac
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