#!/bin/bash#command usage descriptionfunction usage(){	echo -e "Usage:nt$0 DIR_NAME"	exit}# Check if user is rootif [ $(id -u) != "0" ]; then    echo "Error: You must be root to run this script, please use root to use it!!!"    exit 1fi#judge the argvif [ $# -ne 1 ]then 	echo "the usage of the command is ERROR!!!"        usagefidir_name=$1i=0if [ ! -d $dir_name ]then 	echo "the argv is not a direction!!!"		usageelse	cd $dir_name	echo "pwd: " `pwd`	du -ahS | sort -nr | 	while read line 	do			myline=`echo $line | awk '{print $2}'`		if [ -f $myline ] && [ $i -lt 5 ] 		then 			echo $line 			let i++ 		fi	done fi#!/bin/bash#command usage descriptionfunction usage(){	echo -e "Usage:nt$0 DIR_NAME"	exit}# Check if user is rootif [ $(id -u) != "0" ]; then    echo "Error: You must be root to run this script, please use root to use it!!!"    exit 1fi#judge the argvif [ $# -ne 1 ]then 	echo "the usage of the command is ERROR!!!"        usagefidir_name=$1i=0if [ ! -d $dir_name ]then 	echo "the argv is not a direction!!!"		usageelse	cd $dir_name	echo "pwd: " `pwd`	du -ahS | sort -nr | 	while read line 	do			myline=`echo $line | awk '{print $2}'`		if [ -f $myline ] && [ $i -lt 5 ] 		then 			echo $line 			let i++ 		fi	done fi