1：编写一个脚本求斐波那契数列前10项及求和
cd /opt vim fibonacci.sh i echo "0+1+1+2+3+5+8+13+21+34=88" Shift + : wq chmod +x fibonacci.sh # 赋予脚本执行权限 ./fibonacci.sh # 执行脚本
或者：
a=0 b=1 c=0 s=0 for((i=0; i<10; ++i));do if ((i == 0));then echo -n "$a" else echo -n "+$a" fi let s+=a let c=a+b let a=b let b=c done echo "=$s"
2：编写一个脚本，求一个数的逆序表示
测试输入：15 1 256 1000； 预期输出： 51 1 652 0001
reverseNum(){ array_len=$# #测试集个数 for num in $* do echo $num | rev done }
3：使用Shell脚本创建文件目录
设计一个Shell程序，在/home目录下建立一个userdata目录，在userdata目录下再建立5个目录，即user1～user5，
mkdir -p /home/userdata cd /home/userdata mkdir -p user1 user2 user3 user4 user5
4： 编写一个脚本，统计每一行单词的个数
src=/data/workspace/myshixun/src/myText.txt # 文件路径 cd /home touch result.txt while read myline # 逐行读取文件 do echo $myline | wc -w done < $src
5：1~number的和
read -p "Please input an integer number: " number sum=0 for ((i=1; i<=number; i++)) do sum=$[sum+i] done echo "the result of '1+2+3+...$number' is ==> $sum"
6：显示账号名
请写一个程序，可以将/etc/passwd的第一栏取出，而且每一栏都以一行字串“The 1 account is “root” ”来显示，那个1表示行数
文件内容：
rootx:0:0:root:/root:/bin/bash daemon:x :1:1:daemon:/usr/sbin:/usr/sbin/nologin bin:x :2:2:bin:/bin:/usr/sbin/nologin sys:x :3:3:sys:/dev:/usr/sbin/nologin sync:x :4:65534:sync:/bin:/bin/sync games:x :5:60:games:/usr/games:/usr/sbin/nologin man:x :6:12 : man:/var/cache/man:/usr/sbin/nologin lp:x :7:7:lp:/var/spool/lpd:/usr/sbin/nologin mail:x :8:8:mail:/var/mail:/usr/sbin/nologin news:x :9:9:news:/var/spool/news:/usr/sbin/nologin uucp:x :10:10:uucp:/var/spool/uucp:/usr/sbin/nologin proxy: x:13:13:proxy:/bin:/usr/sbin/nologin www-data:x :33:33:www-data:/var/www:/usr/sbin/nologin backup:x :34:34:backup:/var/backups:/usr/sbin/nologin list:x :38:38:Mailing List Manager:/var/list:/usr/sbin/nologin irc:x :39:39:ircd:/var/run/ircd:/usr/sbin/nologin gnats:x :41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin nobody:x :65534:65534:nobody:/nonexistent:/usr/sbin/nologin systemd-timesync:x :100 :102:systemd Time Synchronization,:/run/systemd:/bin/false systemd-network:x :101:103:systemd Network Management,:/run/systemd/netif:/bin/false systemd-resolve:x :102:104:systemd Resolver,:/run/systemd/resolve:/bin/false systemd-bus-proxy:x :103:105:systemd Bus Proxy,:/run/systemd:/bin/false _apt:x :104:65534::/nonexistent:/bin/false sshd:x :105:65534::/var/run/sshd:/usr/sbin/nologin
输出：
The 1 account is “root” The 2 account is “daemon” The 3 account is “bin” The 4 account is “sys” The 5 account is “sync” The 6 account is “games” The 7 account is “man” The 8 account is “lp” The 9 account is “mail” The 10 account is “news” The 11 account is “uucp” The 12 account is “proxy” The 13 account is “www-data” The 14 account is “backup” The 15 account is “list” The 16 account is “irc” The 17 account is “gnats” The 18 account is “nobody” The 19 account is “systemd-timesync” The 20 account is “systemd-network” The 21 account is “systemd-resolve” The 22 account is “systemd-bus-proxy” The 23 account is “_apt” The 24 account is “sshd”
str=`cat /etc/passwd | cut -d':' -f1` i=0 for s in $str do i=$[i+1] echo "The $i account is \"$s\" " done
7：Hello EduCoder ！
编程要求： 1、在/opt/目录下创建第一个shell脚本 文件命名为 test.sh； 2、编写test.sh脚本，让其输出Hello EduCoder（通过 vim 编辑器编辑）； 3、给/opt/test.sh赋予执行权限； 4、运行test.sh文件。
cd /opt vim test.sh i echo "Hello EduCoder" Esc Shift + : wq chmod +x ./test.sh ./test.sh
