用shell给ansbile主机文件修改IP别名

#需求

原内容10.221.29.30    修改后： qq1-5f ansible_ssh_host=10.221.29.30

原内容10.225.32.75    修改后： qq6-10f ansible_ssh_host=10.225.32.75

原内容10.221.249.127  修改后： qq11-15f ansible_ssh_host=10.221.249.127

#文件展示

[[email protected] opt]# tree /opt/
/opt/
├── 1.txt
├── 2.txt
├── gai.sh
└── hosts

0 directories, 4 files

#hosts文件

cat /opt/hosts
10.221.29.30
10.225.32.75
10.221.249.127
10.221.29.1
10.225.37.100
10.225.32.63
10.221.252.191
10.225.32.205
10.221.101.13
10.143.94.59
10.232.48.163
10.232.44.180
10.207.161.216
10.143.82.89
10.225.32.81

#脚本内容

[[email protected] opt]# cat gai.sh 
#!/bin/bash
for i in `cat /opt/hosts`
do
        echo "ansible_ssh_host=$i" >> /opt/1.txt
done
i=0
for b in {1..85}
do
        er=`expr $b % 5`
        if [ $er -eq 0 ];then
                yi=`expr $b - 4`
                let i++
                c=`head -"$i" /opt/1.txt | tail -1`
                echo "qq"$yi"-"$b"f $c" >> 2.txt
        fi
done

#脚本执行,1.txt内容查看

[[email protected] opt]# sh a.sh
[[email protected] opt]# cat 1.txt 
ansible_ssh_host=10.251.132.52
ansible_ssh_host=10.251.124.52
ansible_ssh_host=10.221.29.30
ansible_ssh_host=10.225.32.75
ansible_ssh_host=10.221.249.127
ansible_ssh_host=10.221.29.1
ansible_ssh_host=10.225.37.100
ansible_ssh_host=10.225.32.63
ansible_ssh_host=10.221.252.191
ansible_ssh_host=10.225.32.205
ansible_ssh_host=10.221.101.13
ansible_ssh_host=10.143.94.59
ansible_ssh_host=10.232.48.163
ansible_ssh_host=10.232.44.180
ansible_ssh_host=10.207.161.216
ansible_ssh_host=10.143.82.89
ansible_ssh_host=10.225.32.81

#修改后的配置文件

[[email protected] opt]# cat 2.txt 
qq1-5f ansible_ssh_host=10.251.132.52
qq6-10f ansible_ssh_host=10.251.124.52
qq11-15f ansible_ssh_host=10.221.29.30
qq16-20f ansible_ssh_host=10.225.32.75
qq21-25f ansible_ssh_host=10.221.249.127
qq26-30f ansible_ssh_host=10.221.29.1
qq31-35f ansible_ssh_host=10.225.37.100
qq36-40f ansible_ssh_host=10.225.32.63
qq41-45f ansible_ssh_host=10.221.252.191
qq46-50f ansible_ssh_host=10.225.32.205
qq51-55f ansible_ssh_host=10.221.101.13
qq56-60f ansible_ssh_host=10.143.94.59
qq61-65f ansible_ssh_host=10.232.48.163
qq66-70f ansible_ssh_host=10.232.44.180
qq71-75f ansible_ssh_host=10.207.161.216
qq76-80f ansible_ssh_host=10.143.82.89
qq81-85f ansible_ssh_host=10.225.32.81