基於SAR對Linux資源的監控shell腳本

 1 #! /bin/bash
 2 
 3 if [ "$#" -lt 2 ]   # $# 傳遞給腳本或函數的參數個數
 4 then
 5     echo "Usage: $0 program"   # $0 腳本名稱
 6     exit -1;
 7 fi
 8 
 9 SLEEP_TIME=$1
10 LOG=$2
11 
12 while true
13 do
14     #線程數
15     thread_num=`sar -q 1 1 | awk '/^Average:/{print $3}'`
16     #句柄數
17     open_files=`sar -v 1 1 | awk '/^Average:/{print $3}'`
18     #cpu佔用率
19     cpu_info=`sar -u 1 1 | awk '/^Average:/{print 100-$8}'`
20     #內存使用量
21     mem=`sar -r 1 1 | awk '/^Average:/{print ($3-$5-$6)/($2+$3)*100}'`
22     #IO傳輸總量
23     io=`sar -b 1 1 | awk '/^Average:/{print $2}'`
24     #輸出到日誌文件
25     echo -e "`date +"%Y-%m-%d %H:%M:%S"`,${cpu_info},${mem},${io},${thread_num},${open_files}" >> ${LOG}
26     sleep $SLEEP_TIME
27 done