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28 lines
710 B
Plaintext
28 lines
710 B
Plaintext
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#!/usr/bin/env bash
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mem_info=$(</proc/meminfo)
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mem_info=$(echo $(echo $(mem_info=${mem_info// /}; echo ${mem_info//kB/})))
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for m in $mem_info; do
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case ${m//:*} in
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"MemTotal") usedmem=$((usedmem+=${m//*:})); totalmem=${m//*:} ;;
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"ShMem") usedmem=$((usedmem+=${m//*:})) ;;
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"MemFree"|"Buffers"|"Cached"|"SReclaimable") usedmem=$((usedmem-=${m//*:})) ;;
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esac
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done
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usedmem=$((usedmem / 1024))
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totalmem=$((totalmem / 1024))
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mem="${usedmem}MB / ${totalmem}MB"
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## Complete summary
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if [[ $1 = "-fi" ]]; then
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echo " $mem"
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elif [[ $1 = "-f" ]]; then
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echo "$mem"
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## Only used RAM
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elif [[ $1 = "-i" ]]; then
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echo " $usedmem MB"
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else
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echo "$usedmem MB"
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fi
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