端口流量检测,内存使用查看

查看内存mem

#!/bin/sh

mem=`free -m | awk 'NR==2{print $2}'`
ps -aux 2>&1 | sort -k 4 -r | awk '$4 ~ /^[0-9]/ && $4>0 {print $4,$11}' | awk '{print

$1/100*mem"   "$2}' mem=$mem | sort -k 2 | awk '
{
   a[$2] += $1;
   b[$2]++;
   total += $1;
   total++;
}
END{
  for(i in a){
    t=i;
    gsub(/:|.*\//, "", t);
    printf "%10s   %s\n" ,a[i]"MB", t"["b[i]"]";
  }
print "Memory Total: "mem"MB, used: "total"MB, free: "mem-total"MB."
}' mem=$mem | sort -n -r

#chmod u+x mem

#./mem

 1980.16MB   httpd[165]
 324.027MB   python[2]
  96.008MB   php[7]
  84.007MB   mysqld[1]
Memory Total: 12001MB, used: 2659.21MB, free: 9341.79MB.

查看端口流量net

#!/bin/bash
# osdba 2008.10.22 monitor the interface's network traffic.
#   Zeuslion 2009.08.29.

if [ $# -ne 3 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ];then
   echo Useage : $0 interface interval count
   echo Example: $0 eth0 2 10
   exit
fi
eth=$1
count=$3
interval=$2
inbytesfirst=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $2}')
if [ -z "$inbytesfirst" ];then
    echo The network interface $eth is not exits!
    exit 1;
fi
outbytesfirst=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $10}')
inpacketsfirst=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $3}')
outpacketsfirst=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $11}')
sleep $interval"s"
i=0
while [ "$i" -lt "$count" ]
do
   inbytesend=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $2}')
   outbytesend=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $10}')
   inpacketsend=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $3}')
   outpacketsend=$(cat /proc/net/dev |tr ':' ' '|awk '/'$eth'/{print $11}')

   bytesin=$(($inbytesend-$inbytesfirst))
   bytesout=$(($outbytesend-$outbytesfirst))
   packetsin=$(($inpacketsend-$inpacketsfirst))
   packetsout=$(($outpacketsend-$outpacketsfirst))

   if [ "$bytesin" -lt "0" ];then
      bytesin=$((4294967295-$inbytesfirst+$inbytesend))
      #echo bytesin $bytesin $inbytesfirst $inbytesend
   fi
   if [ "$bytesout" -lt "0" ];then
      bytesout=$((4294967295-$outbytesfirst+$outbytesend))
      #echo bytesout $bytesout $outbytesfirst $outbytesend
   fi
   if [ "$packetsin" -lt "0" ];then
      packetsin=$((4294967295-$inpacketsfirst+$inpacketsend))
      #echo packetsin $packetsin $inpacketsfirst $inpacketsend
   fi
   if [ "$packetsout" -lt "0" ];then
      packetsout=$((4294967295-$outpacketsfirst+$outpacketsend))
      #echo packetsout $packetsout $outpacketsfirst $outpacketsend
   fi

   bytesin=$(($bytesin/$interval))
   bytesout=$(($bytesout/$interval))
   packetsin=$(($packetsin/$interval))
   packetsout=$(($packetsout/$interval))

   sumbytesin=$(($sumbytesin+$bytesin))
   sumbytesout=$(($sumbytesout+$bytesout))
   sumpacketsin=$(($sumpacketsin+$packetsin))
   sumpacketsout=$(($sumpacketsout+$packetsout))

   if [ $(($i%20)) -eq 0 ];then
      echo " ifname   | in_kbits/s out_kbits/s | in_kBytes/s out_kBytes/s | in_packets/s

out_packets/s"
      echo "--------- | ---------- ----------- | ----------- ------------ | ------------ -----

--------"
   fi
   echo $eth $bytesin $bytesout $packetsin $packetsout |awk '{printf("%9s | %10d %11d | %11d %

12d | %12d %13d\n",$1,$2/128,$3/128,$2/1024,$3/1024,$4,$5)}'
   inbytesfirst=$inbytesend
   outbytesfirst=$outbytesend
   inpacketsfirst=$inpacketsend
   outpacketsfirst=$outpacketsend

   i=$(($i+1))
   sleep $interval"s"
done

sumbytesin=$(($sumbytesin/$i))
sumbytesout=$(($sumbytesout/$i))
sumpacketsin=$(($sumpacketsin/$i))
sumpacketsout=$(($sumpacketsout/$i))

echo "--------- | ---------- ----------- | ----------- ------------ | ------------ -----------

--"
echo Average $sumbytesin $sumbytesout $sumpacketsin $sumpacketsout |awk '{printf("%9s | %10d %

11d | %11d %12d | %12d %13d\n",$1,$2/128,$3/128,$2/1024,$3/1024,$4,$5)}'

#chmod u+x net

#./net eth0 2 10

ifname   | in_kbits/s out_kbits/s | in_kBytes/s out_kBytes/s | in_packets/s out_packets/s
--------- | ---------- ----------- | ----------- ------------ | ------------ -------------
     eth0 |        200        2210 |          25          276 |          224           273
     eth0 |        170        1251 |          21          156 |          175           187
     eth0 |        803         850 |         100          106 |          211           181
     eth0 |        235        2669 |          29          333 |          235           305
     eth0 |        228        2183 |          28          272 |          187           274
     eth0 |         72         333 |           9           41 |           80            82
     eth0 |        229        2823 |          28          352 |          269           330
     eth0 |        366        3215 |          45          401 |          339           388
     eth0 |       1022        5156 |         127          644 |          435           580
     eth0 |        272        2970 |          34          371 |          281           333
--------- | ---------- ----------- | ----------- ------------ | ------------ -------------
  Average |        360        2366 |          45          295 |          243           293