如何在 awk 脚本中隐藏 csv 内容

Question

首先，先谢谢你了。我正在努力使用 awk 脚本获得以下答案：

输入：gawk -f script.awk file.csv

（最后不能用tail方法，只能用上面的）

期望的输出：

说西班牙语的 20 人的平均年龄是 29.55 岁。

实际输出：

ActualOutput Picture

所以基本上，我只想隐藏或删除该信息，只显示所需的输出。

我的脚本如下（图中也有）：

#!/usr/bin/awk -f
BEGIN{contador=0;total=0}
FS=","; ~/.*spanish.*/||~/.*spanish.*// {contador++;total=total+} 
END{
printf("\nThe average age of %d people who speak Spanish is %.2f years.\n",contador,total/contador)
}

这里我也留下了csv文件：

user,gender,age,native_lang,other_lang
0,M,19,finnish,english swedish german
1,M,30,urdu,english 
2,F,26,finnish,english swedish german
3,M,20,finnish,english french swedish 
4,F,20,finnish,english swedish 
5,F,29,finnish,english 
6,F,23,swedish,finnish english 
7,F,19,swedish,finnish english french 
8,F,25,finnish,english swedish german russian french estonian
9,F,27,finnish,english italian swedish spanish french
10,F,20,finnish,english 
11,F,26,finnish,english swedish
12,F,27,finnish,english swedish french spanish
13,F,30,finnish,english russian swedish 
14,F,28,finnish,english swedish spanish german 
15,M,34,finnish,swedish english german spanish russian 
16,F,29,finnish,english swedish french spanish estonian 
17,F,19,swedish,finnish english french korean
18,M,27,finnish,english swedish german russian spanish dutch
19,F,27,finnish,english swedish russian 
20,F,26,finnish,english swedish 
21,M,23,finnish,english swedish
22,M,30,english,finnish 
23,F,25,finnish,swedish english spanish 
24,F,21,finnish,english swedish spanish 
25,F,26,finnish,english swedish
26,M,20,polish,english spanish finnish 
27,M,25,finnish,english french 
28,F,21,russian,finnish english french 
29,F,28,finnish,english swedish
30,F,19,finnish,english swedish french spanish 
31,O,40,finnish,swedish english german russian lithuanian portuguese
32,F,22,finnish,swedish english french
33,M,26,spanish,english german french
34,F,20,finnish,swedish english german
35,F,21,finnish,english german swedish russian italian
36,F,22,finnish,english swedish
37,F,22,finnish,english swedish spanish
38,F,20,finnish,english italian swedish
39,F,29,finnish,english swedish italian french
40,F,20,finnish,english swedish german french
41,F,44,finnish,english swedish french italian german spanish latin portuguese russian dutch danish basque
42,F,31,finnish,english swedish spanish
43,F,23,finnish,english swedish korean
44,F,19,finnish,english swedish german
45,M,20,finnish,english
46,M,20,swedish,finnish english spanish
47,F,39,finnish,english swedish german korean
48,F,26,finnish,english swedish spanish
49,F,34,french,finnish english spanish russian swedish german hebrew
50,F,56,spanish,english
51,F,50,spanish,english
52,F,25,spanish dutch,english

抱歉文本格式不正确，这是我在 Stack 中的第一个问题。

Answer 1

使用 awk:

awk 'BEGIN{ FS="," }
     NR>1 && /spanish/{ c++; sum+= }
     END{ print "The average age of",c,"people who speak Spanish is",sum/c,"years." }' file

输出：

The average age of 20 people who speak Spanish is 29.55 years.

参见：8 Powerful Awk Built-in Variables – FS, OFS, RS, ORS, NR, NF, FILENAME, FNR

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