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32 lines
649 B
Bash
Executable File
32 lines
649 B
Bash
Executable File
#!/bin/bash
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# i3blocks memory indicator, zero-fork per invocation via /proc/meminfo.
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set -euo pipefail
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format_mib() {
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local mib=$1
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if ((mib >= 1024)); then
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printf '%d.%dGiB' "$((mib / 1024))" "$((((mib % 1024) * 10) / 1024))"
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else
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printf '%dMiB' "$mib"
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fi
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}
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total_kib=0
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available_kib=0
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while IFS=' :' read -r key value _; do
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case $key in
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MemTotal)
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total_kib=$value
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;;
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MemAvailable)
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available_kib=$value
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;;
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esac
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done < /proc/meminfo
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used_mib=$(((total_kib - available_kib) / 1024))
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total_mib=$((total_kib / 1024))
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printf ' %s/%s\n' "$(format_mib "$used_mib")" "$(format_mib "$total_mib")"
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