66 lines
1.4 KiB
Bash
Executable File
66 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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TYPE="${BLOCK_INSTANCE:-mem}"
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awk -v type=$TYPE '
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/^MemTotal:/ {
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mem_total=$2
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}
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/^MemFree:/ {
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mem_free=$2
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}
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/^Buffers:/ {
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mem_free+=$2
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}
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/^Cached:/ {
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mem_free+=$2
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}
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/^SwapTotal:/ {
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swap_total=$2
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}
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/^SwapFree:/ {
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swap_free=$2
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}
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END {
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if (type == "swap") {
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free=swap_free/1024/1024
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used=(swap_total-swap_free)/1024/1024
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total=swap_total/1024/1024
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} else {
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free=mem_free/1024/1024
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used=(mem_total-mem_free)/1024/1024
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total=mem_total/1024/1024
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}
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pct=used/total*100
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# full text
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printf("%.1fG/%.1fG (%.f%%)\n", used, total, pct)
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# short text
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printf("%.f%%\n", pct)
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# color
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if (pct > 90) {
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print("#FF0000\n")
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} else if (pct > 80) {
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print("#FFAE00\n")
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} else if (pct > 70) {
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print("#FFF600\n")
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}
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}
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' /proc/meminfo
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