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#!/bin/sh
set -e
if [ ! -d "$NUMEN_STATE_DIR" ]; then
exit 1
fi
PID_PATH=$NUMEN_STATE_DIR/radio.pid
PID=$(cat $PID_PATH 2> /dev/null || true)
if [ ! -z "$PID" ]; then
kill -- $PID $(ps --ppid $PID -o pid=) || true
waitpid $PID || true
rm -f $PID_PATH
fi
if [ -z "$1" ]; then
exit 0
fi
if ! command -v "radio-$1" > /dev/null; then
exit 1
fi
(echo $$ > $PID_PATH)
trap "exit 1" HUP INT PIPE QUIT TERM
trap "rm -rf $PID_PATH" EXIT
radio-$1 > /dev/null 2>&1
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