limpa_cache.1.1.sh
Publicado por matheus ferreira cardoso (última atualização em 26/02/2015)
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Script simples para verificar quantidade total de memória e depois limpar o cache.
#!/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
Script contra ataques de Brutal Force por SSH.
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