Question

我搜索了很多答案，但却找不到任何答案。

我有一个文本文件（来自考试），答案在另一个文件中。我设法在每个问题的末尾添加了文本“答案：”，但现在我找不到从file2获取答案到文件1的方法。

文件1：

问题：179 - Alterando-seoââululodeataquede0ºparaº6，一个抵抗寄生虫：

a Aumenta 
b) Não se altera 
c) Diminui 
d) Impossível de se determinar 
Answer:

file2的：

177)C
178)A
179)B
180)B

我尝试使用sed但到目前为止没有成功，任何建议都会受到赞赏。

每个问题都会重复file1结构，但有时问题可以有多行。

所需的输出应为：

问题：179 - Alterando-seoââululodeataquede0ºparaº6，一个抵抗寄生虫：

a Aumenta 
b) Não se altera 
c) Diminui 
d) Impossível de se determinar 
Answer: B

Answer 1

sed几乎不是我选择的工具，而在Awk中则相当容易。

awk 'NR==FNR {
        # NR is equal to FNR when we are reading the first input file
        # Store the right answer for each question in an array
        split($1, b, /\)/)
        # If the input was 123)A, the array b now contains "123" and "A"
        a[b[1]] = b[2]
        # We are done; skip to next line
        next
    }
    # If we are here, we are in the second file.  Find a question delimiter
    /Question: [0-9]+/ {
        # If we have the previous question in memory, print its answer first
        if (q>0) { print "\nAnswer: " a[q] "\n\n" }
        # Remember index for this question
        q=$2
    }
    # If we are this far, perform the default action, that is, print this line
    # "1" is a shorthand for "print the current line"
    1
    # At the end of the file, print the last remaining answer
    END { print "\nAnswer: " a[q] "\n\n" }' file2 file1

如果问题标题的格式或答案文件中的数据不完全正常，这并不完全可靠。

在另一个文件上找到匹配项时，从一个文件添加文本

1 个答案: