统计 /proc 目类下 Linux 进程相关数量信息，输出总进 程数，running 进程数，stoped 进程数，sleeing 进程 数，zombie 进程数。

输出所有 zombie 的进程到 zombie.txt 杀死所有 zombie 进程。

#!/bin/bash 
ALL_PROCESS=$(ls /proc/ | egrep '[0-9]+') 

running_count=0 
stoped_count=0 
sleeping_count=0 
zombie_count=0

for pid in ${ALL_PROCESS[*]}
do
    test -f /proc/$pid/status && state=$(egrep "State" /proc/$pid/status | awk '{print $2}')
    case "$state" in
        R)
            running_count=$((running_count+1))
        ;;
        T)
            stoped_count=$((stoped_count+1))
        ;;
        S)
            sleeping_count=$((sleeping_count+1))
        ;;
        Z)
            zombie_count=$((zombie_count+1)) 
            echo "$pid" >>zombie.txt 
            kill -9 "$pid"
        ;;
    esac
done


echo -e "total:
$((running_count+stoped_count+sleeping_count+zombie_count))\nrunning:
$running_count\nstoped: $stoped_count\nsleeping: $sleeping_count\nzombie:
$zombie_count"