stream-notify/stream-notify.sh

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#!/usr/bin/env bash
usage() {
echo "Usage: $(basename $0) <file>"
}
if [ "$#" -ne 1 ]; then
usage
exit 1
fi
ssh vps "tail -n 0 -f $1" | stdbuf -o0 grep error | while IFS= read -r line
do
title=$(basename $1)
d=$(date "+%Y/%m/%d %H:%M:%S %Z")
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echo "$d $line"
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body="$d\n$line"
notify-send "$title" "$body"
done