Script simples para verificar quantidade total de memória e depois limpar o cache.

• Download 6163.limpa_cache_1.1.sh
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#!/bin/bash
#################################################################
# sistema - limpeza de memoria cache                            #
# Autor: Matheus Ferreira Cardoso                               #
# Empresa : M-Unix                                              #
# Email: munix.root@gmail.com                                   #
#################################################################

echo "########################"
echo "CALCULANDO MEMORIA TOTAL"
echo "########################"

sleep 5

dmidecode -t 19 | grep Range > teste.txt

cat teste.txt

rm -rf teste.txt

echo "########################"

sleep 5

echo "DESEJA LIMPAR A MEMORIA RAM? [sn] "

    read RESPOSTA
        test "$RESPOSTA" = "n" && exit

#Limpar o cache da memoria RAM
MEM1=`free|awk '/Mem:/ {print int(100*$3/$2)}'`
free -m
echo "##########################################################################"
echo "Memória RAM Usada antes de fazer a limpeza:" $MEM1%
echo "##########################################################################"
echo " "
echo "LIMPANDO MEMORIA --- RAM ---"
sleep 3
sync
echo 3 > /proc/sys/vm/drop_caches
echo "LIMPANDO MEMORIA SWAP..."
sleep 4
swapoff -a
swapon /dev/sda5
echo "##########################################################################"
MEM2=`free|awk '/Mem:/ {print int(100*$3/$2)}'`
free -m
echo "##########################################################################"
echo "Uso de memória RAM após a limpeza:" $MEM2% "Economia de: " `expr $MEM1 - $MEM2`"%"
echo "##########################################################################"

exit

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