shell script自动搭建简单的quota(磁盘配额)

#!/bin/bash
#
#Shell name:quota.sh
#
#Program:
#    create disk-quotas for some users
#Author:pero
#Email:    [email protected]
#History:
#    2012/07/18
#Usage:vi quota.sh ; :set ff=unix
#
#If you have any opinion please contact me

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:.
export PATH

if [ $UID -ne 0 ]
then
  echo "Run as root"
  exit 1
fi

#check the soft do you have
soft=$(rpm -qa | grep quota)
file=fstab
temp=tmp.fs

if [ -z $soft ]
then
    yum install quota -y &> //nulldev   
    echo "the soft of quota is install"
else   
    echo "the soft of quota was install"
fi

#config the /etc/fstab

read -p "please input a 'Mounted on' for check the partition :" mou
read -p "please input a user name to creating disk-quotas:" user
read -p "Please input a number of soft block [0]:" sb
read -p "Please input a number of hard block ,must be great than 0:" hb
read -p "Please input a number of soft inode [0]:" si
read -p "Please input a number of hard inode [0]:" hi


sb=0
si=0
hi=0

par=$(df -h | grep $mou | gawk '{print $1}')


cd /etc
cp -p $file $file.bak
mv $file $temp
n=$(grep -n $mou $temp | gawk 'BEGIN{FS=":"} {print $1}')

if [ -z $n ]
then
    echo "$mou is not in you /etc/fstab file"
    echo "please input a right 'Mounted on' "
else
    sed ''$n's/defaults/defaults,usrquota,grpquota/' $temp > $file

    if [ $? -eq 0 ]
    then
        rm -rf $temp
        echo "writed config in /etc/fstab"
        mount -o remount,usrquota,grpquota $mou

        cd $mou

        #quotacheck -ugcv $mou  &> /dev/null
        quotacheck -ugcva &> /dev/null
       
        if [ $hb = "0" ] && [ -z $hb ]
        then
            echo "hard block must be great than 0"
            echo "please use Usage:edquota -u user to create disk-quotas"
            exit 77
        fi

        if [ $sb -gt $hb ]
        then
            tmp=${sb}
            sb=${hb}
            hb=${tmp}
        fi
       
        setquota -u $user ${sb} ${hb} ${si} ${hi} $mou

        if [ $? -eq 0 ]
        then
            echo "create quota for $user"
            echo "It's ok..."
        else
            echo "Please check $user is exist in your system !!!"
            exit 77
        fi
       

    else
        echo "please in put a right 'Mounted on' "
        mv $temp $file
        rm -rf $file.bak
        #exit 0
    fi
fi