33 lines
741 B
Bash
33 lines
741 B
Bash
#!/usr/bin/env bash
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#
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# Read memory usage in Linux
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set -euo pipefail
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IFS=$'\n\t'
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DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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SLEEP_INTERVAL=${SLEEP_INTERVAL:-30}
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while true; do
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memory_usage=$(free --bytes --wide)
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total_bytes=$(grep 'Mem:' <<<"$memory_usage" | awk '{print $2}')
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free_bytes=$(grep 'Mem:' <<<"$memory_usage" | awk '{print $4}')
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free_percent=$((100 * free_bytes / total_bytes))
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text=""
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if [ $free_bytes -ge $((1024 * 1024 * 1024)) ]; then
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text="$((free_bytes / 1024 / 1024 / 1024)) GiB"
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fi
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tooltip="${free_percent}%"
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jq --unbuffered --compact-output <<EOF
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{
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"text":"${text}",
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"tooltip":"${tooltip}",
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"percentage":${free_percent}
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}
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EOF
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sleep $SLEEP_INTERVAL
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done
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