內存監控及報警shell腳本

# free -m |awk 'NR==3 {print $NF}'

4012

#!/bin/bash                                   腳本

used_mem=`free -m |awk 'NR==3 {print$NF}'`

if [ $used_mem -lt 5000]

then

  echo"mem is not enough,$used_mem."

  echo"mem is not enough,$used_mem."|mail -s "mem warning $(data +%F)"[email protected]     #發郵件

fi