- #!/usr/bin/bash
- ########################################
- #memory used
- #v1.0 by LIXIN 20180605
- ########################################
- mem_used=
- free -m |grep '^Mem' |awk '{print $3}'
- mem=
- free -m |grep 'Mem' |awk '{print $2}'
- mem_usage=$((mem_used100/mem))
- warning_file=/tmp/mem_warning.txt
- rm -f /tmp/_warning*
- if [ "$mem_usage" -ge 20 ]; then
- echo "memory's warning `date +%F-%H` memory:$mem_usage%"> $warning_file
- fi
- if [ -f $warning_file ];then
- mail -s "memory warning......" -a $warning_file xinli_2014@163.com < $warning_file
- rm -f /tmp/_warning
- fi
来源: http://www.bubuko.com/infodetail-2632440.html