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Shell脚本获取linux系统用户的内存使用情况

#!/bin/bash

stats=””

echo “% user”

echo “============”

# get all users from linux

for user in `ps aux | grep -v COMMAND | awk ‘{print $1}’ | sort -u`

# find the memory usage % for each user

do

stats=”$stats\n`ps aux | egrep ^$user | awk ‘BEGIN{total=0}; \

{total += $4};END{print total,$1}’`”

done

# sort data numerically (largest first)

echo -e $stats | grep -v ^$ | sort -rn | head