1. 写一个脚本,使用ping命令探测172.16.250.1-172.16.250.254之间的所有主机的在线状态;
在线的主机使用绿色显示;
不在线的主机使用红色显示;
#!/bin/bash
#
for i in {1..254};do
ping -c 3 -f 172.16.250.$i &> /dev/null
if [ $? -eq 0 ];then
echo -e “\033[32m 172.16.250.$i is on line \033[0m”
else
echo -e “\033[31m 172.16.250.$i is offline \033[0m”
fi
done
2. 如何给网络接口配置多个地址,有哪些方法
– ifconfig家族
# ifconfig eno33554984 192.168.10.111
– ip家族
# ip address add 192.168.10.112 dev eno33554984
– nmtui或setup
编辑响应接口,添加ip
– 编辑/etc/sysconfig/network-scripts/ifcfg-eno33554984文件,添加IP地址
3. 写一个脚本,完成以下功能
(1)假设某目录(/etc/rc.d/rc3.d/)下分别有K开头的文件和S开头的文件若干;
(2)显示所有以K开头的文件的文件名,并且给其附加一个stop字符串;
(3)显示所有以S开头的文件名,并且给其附加一个start字符串;
(4)分别统计S开头和K开头的文件各有多少;
#!/bin/bash
#
declare -i n=0
declare -i m=0
for file in $(ls /etc/rc.d/rc3.d);do
if [[ $file =~ ^K ]];then
echo -e “$file\bstop”
let n+=1
elif [[ $file =~ ^S ]];then
echo “start$file”
let m+=1
fi
done
echo “K starting file: $n”
echo “S starting file: $m”
4. 写一个脚本,完成以下功能
(1)脚本能接受用户名作为参数;
(2)计算此些用户的ID之和;
#!/bin/bash
#
for i in $*;do
let m+=$(grep $i /etc/passwd | cut -d: -f3)
done
echo “The sum of userid is $m.”
5. 写一个脚本
(1)传递一些目录给此脚本;
(2)逐个显示每个目录的所有一级文件或子目录的内容类型;
(3)统计一共有多少个目录;且一共显示了多少个文件的内容类型;
#!/bin/bash
#
for i in $*;do
name=$(ls -ld $i/*)
num=$(echo “$name” | grep -o “/.*/.*$”)
cat /dev/null > /tmp/type
echo “$num”>/tmp/num
while read line;do
type=$(file $line | cut -d’ ‘ -f2,3)
linetype=$line:$type
echo “$linetype”
echo “$type” >> /tmp/type
done < /tmp/num
echo -e “\nThe total type number of directory and file $i is descritped here:”
sort /tmp/type | uniq -c | sed ‘s@^[[:space:]]\+@@’
done
6. 写一个脚本
通过命令行传递一个参数给脚本,参数为用户名
如果用户的id号大于等于500,则显示此用户为普通用户;
#!/bin/bash
#
let i=$(grep $1 /etc/passwd | cut -d: -f3)
if [ $i -gt 500 ];then
echo “$1’s id is $i, and is a normal user.”
else
echo “$1’s id is $i, and is not a normal user”
fi
7. 写一个脚本,用ping命令测试172.16.250.20-172.16.250.100以内有哪些主机在线,将在线的显示出来
#!/bin/bash
#
declare -i uphosts=0
declare -i downhosts=0
for i in {20..100}; do
if ping -W 1 -c 1 172.16.250.$i &> /dev/null; then
echo “172.16.250.$i is up.”
let uphosts+=1
else
echo “172.16.250.$i is down.”
let downhosts+=1
fi
done
echo “Up hosts: $uphosts, Down hosts: $downhosts.”
8. 打印九九乘法表
#!/bin/bash
#
for j in {1..9}; do
for i in $(seq 1 $j); do
echo -n -e “${i}X${j}=$[${i}*${j}]\t”
done
echo
done
原创文章,作者:allen,如若转载,请注明出处:http://www.178linux.com/69931
评论列表(1条)
赞~完成的不错,几个题考虑到了多种方法~~继续加油~