批量创建用户
read -p "请输入用户名的前缀:" user
read -p "请输入用户的数目:" num
count=0
if (($num>10))
then
echo "最多只能同时新建10个用户"
else
for i in $(seq $num)
do
if useradd $user$i
then
count=$(($count+1))
echo "用户$user$i已经创建成功"
fi
done
echo "一共新建的用户数:$count个"
fi
批量删除用户
read -p "请输入需要删除的用户名前缀:" user
if [[ $user = "" ]]
echo "请输入合法的用户名前缀"
if ! cat /etc/passwd |grep ^$user &>/dev/null
then
echo "以$user开头的用户不存在"
else
awk -F ":" '$3<500||$3>60000{print $1}' /etc/passwd|grep ^$user>user2.txt
user2=($(cat user2.txt))
for j in ${user2[@]}
do
echo "$j是系统用户不能删除"
done
awk -F ":" '$3>=500{print $1}' /etc/passwd|grep ^$user>user1.txt
user1=($(cat user1.txt))
for i in ${user1[@]}
userdel -r $i
echo "用户$i已经被成功删除"
echo "一共删除的用户数:${#user1[@]}"
fi