如何通過從Shell腳本中的文件讀取IP地址來構造字符串？

Question

我有一個文本文件，它將具有這樣的IP地址-

1.2.3.4
4.5.6.67
9.10.23.40
11.12.3.4
4.15.16.67
19.10.23.40

現在，我需要閱讀上面的文本文件，並為每個IP地址在sql字符串下面構造-如您所見，只有IP地址部分發生了變化，除此之外一切都相同。

insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '1.2.3.4', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.5.6.67', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '9.10.23.40', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '11.12.3.4', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.15.16.67', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '19.10.23.40', dateOf(now()), 'hello')

在shell腳本中執行此操作的最佳方法是什么？

更新：-

這是我嘗試過的-

#!/bin/bash
while read host rest; do
    # not sure what should I do here
  EOF
done < ipList.txt
wait

獲取IP地址后，我無法理解如何制作sql字符串

Answer 1

首先，您的文件僅包含一列，而您正在讀取兩列（請read host rest ）。

第二，我的意思是dateOf（now（））是bash函數嗎？

可能的解決方案如下所示：

while read ip; do
    echo "insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '$ip', dateOf(now()), 'hello')"
done < ipList.txt

如果dateOf(now())是bash函數，則可以將結果存儲在變量中，然后以休閑方式使用：

function dateOfNow() {
    echo -n $(date); # Just an example :)
}
while read ip; do
    d=$(dateOfNow)
    echo "insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '$ip', $d), 'hello')"
done < ipList.txt

輸出示例：

insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '1.2.3.4', Wed Dec 17 15:05:55 CST 2014), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.5.6.67', Wed Dec 17 15:05:55 CST 2014), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '9.10.23.40', Wed Dec 17 15:05:55 CST 2014), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '11.12.3.4', Wed Dec 17 15:05:55 CST 2014), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.15.16.67', Wed Dec 17 15:05:55 CST 2014), 'hello')

Answer 2

嘗試這樣做：

$ while read ip; do printf "insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '%s', dateOf(now()), 'hello')\n" $ip; done < file
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '1.2.3.4', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.5.6.67', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '9.10.23.40', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '11.12.3.4', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.15.16.67', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '19.10.23.40', dateOf(now()), 'hello')

Answer 3

這個怎么樣 ：

 cat  ipList.txt | xargs -n1 -I % echo  "insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '%', dateOf(now()), 'hello')" 

輸出：

insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '1.2.3.4', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.5.6.67', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '9.10.23.40', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '11.12.3.4', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '4.15.16.67', dateOf(now()), 'hello')
insert into some_table (id, ip_address, last_modified_date, customer_name) values (1, '19.10.23.40', dateOf(now()), 'hello')