BASH-file.txt中的正则表达式匹配行具有多个定界符 [英] BASH - Regex match line in file.txt with more than one delimiter

问题描述

早上好！

我正试图让我的脚本读取用户输入，匹配file.txt中的关键字，并基于该匹配返回一个随机的定界响应.我可以匹配关键字并返回一个响应，但是我无法解决如何随机分配多个可能的响应的问题.

I'm trying to get my script to read user input, match a keyword in file.txt and return a random delimited response based on that match. I can match the keyword and return ONE response, but I can't wrap my head around how to randomize a number of possible responses.

例如，我在 file.txt 中:

big bird|Big birds tend to be big.;;They have wings.
big truck|I love trucks!;;Ford makes nice big trucks. 
red truck|Red is my favorite color.;;Red is also a name.

这是我的代码，可以与第一个定界符(|)配合使用，并在其后返回ENTIRE响应.

Here's my code which works fine with the first delimiter (|) and returns the ENTIRE response after it.

read -p " " query
response="$(awk -F\| -v r="$query" '$1==r{print $2;exit}' file.txt)"
echo "$query"

例如，

输入:大鸟

输出:大鸟往往大.；；它们有翅膀.

Output: Big birds tend to be big.;;They have wings.

但是我需要让它第二次返回在同一行以双分号( ;; )分隔的RANDOM响应.

But I need to get it to return a RANDOM response delimited on the same line a second time with double semicolons (;;).

因此，当输入该输入时，它应随机返回大鸟往往是大鸟".或它们有翅膀".并非两者都在同一时间.

So, when that input is entered, it should randomly return either "Big birds tend to be big." or "They have wings." Not both at the same time.

有什么想法吗?

推荐答案

尝试:

awk -F\| -v r="$query" '$1==r{print $2;exit}' file.txt |
sed 's/;;/\n/g' | shuf -n1

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