查看进程所消耗的内存脚本

脚本内容如下：

#!/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

执行结果：

root@postgresql:~# sh cpu.sh   118.53MB   mysqld[1]  67.167MB   apache2[6]  23.706MB   postgres[1]  11.853MB   snapd[1]   7.902MB   systemd-journald[1]   7.902MB   sshd[2]   3.951MB   systemd-udevd[1]   3.951MB   systemd[1]   3.951MB   sshd[1]   3.951MB   postgres[1]   3.951MB   polkitd[1]   3.951MB   init[1]   3.951MB   -bash[1]   3.951MB   accounts-daemon[1]Memory Total: 3951MB, used: 288.668MB, free: 3662.33MB.