script to get avg mem and avg cpu usage in linux
#!/bin/bash -x #for (( i = 0 ; i while true do dt=`date`; #st1=`free -gos awk 'NR==1{print $2}'` used="`free -g awk 'NR==2{print $3}'`" total="`free -g awk 'NR==3{print $4}'`" #echo "total : " $total "used : " $used `date` # calculate the average memory echo "total : " $total "used : " $used "avg-mem" `expr $used/$total*100 bc -l` "----------" `iostat -xtc` >> tt.txt # to wait for 2 seconds sleep 2 done tested in centos 5 version