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alexandre2602/limpacacheram.sh

Forked from rmsaitam/limpacacheram.sh
Created June 6, 2020 15:18
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  1. @rmsaitam rmsaitam created this gist Nov 14, 2018.
    47 changes: 47 additions & 0 deletions limpacacheram.sh
    View file
    Original file line number Diff line number Diff line change
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    #!/bin/sh
    #!/bin/sh
    # https://blog.remontti.com.br/92

    PATH="/bin:/usr/bin:/usr/local/bin"

    # Porcentagem maxima (mude se vc achar q deve) eu deixo em 85%
    percent=85

    # Total da memoria:
    ramtotal=`grep -F "MemTotal:" < /proc/meminfo | awk '{print $2}'`
    # Memoria livre:
    ramlivre=`grep -F "MemFree:" < /proc/meminfo | awk '{print $2}'`

    # RAM utilizada pelo sistema:
    ramusada=`expr $ramtotal - $ramlivre`

    # Porcentagem de RAM utilizada pelo sistema:
    putil=`expr $ramusada \* 100 / $ramtotal`

    echo =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    date
    echo
    echo "Mem. utilizada: $putil %";

    if [ $putil -gt $percent ]
    then
    date=`date`
    echo $date >> /var/log/memoria.log
    echo "Mem. utilizada: $putil %" >> /var/log/memoria.log

    echo "Memoria acima de $percent %, cache foi limpado!";
    sync
    # 'Dropando' cache:
    echo 3 > /proc/sys/vm/drop_caches
    # Caso nao esteja utilizanod debian, descomente a linha abaixo
    # sysctl -w vm.drop_caches=3
    echo
    free -m
    echo
    echo =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    else
    echo "Cache nao foi limpado!";
    echo =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    unset percent ramtotal ramlivre ramusada putil
    exit $?
    fi