如何读取 CSV 文件并以 arrays Bash 脚本的形式存储？

Question

My CSV file:

Interface   PHY Protocol    Description
Eth0/0/1    up  up  ***Another-Text-Here***
Eth0/0/2    up  up  ***Some-Text-Here***
Eth0/0/3    up  up  ***Connected-to-Camera***
Eth0/0/4    up  up  ***Some-Services-Ltd***

I want to show in the same format while executing the bash file

Answer 1

CSV means comma separated values but there is a possibility that non-comma field separators are used. CSV file format is not fully standardised. So we can give the benefit of doubt to the "Question asker" that the delimiter here in the question is tab or space. You can visit the wiki which also highlights the same thing in its 3rd paragraph, quoting here:

In addition, the term "CSV" also denotes some closely related delimiter-separated formats that use different field delimiters, for example, semicolons. These include tab-separated values and space-separated values. A delimiter that is not present in the field data (such as tab) keeps the format parsing simple. These alternate delimiter-separated files are often even given a.csv extension despite the use of a non-comma field separator. This loose terminology can cause problems in data exchange. Many applications that accept CSV files have options to select the delimiter character and the quotation character. Semicolons are often used in some European countries, such as Italy, instead of commas.

https://en.wikipedia.org/wiki/Comma-separated_values

Now answering the question of @Ego:

1. Incase you want to show in the same format while executing the bash file: echo "$(cat testfile.csv)"

2. Incase you want to store it in array using bash script:

index=0
while IFS= read -r line; do
    testarray["$index"]="$line"
    index=$((index + 1));
done < testfile.csv

Print each line. In this case, each line is stored as an item in an array.

for eachline in "${testarray[@]}"
  do
    echo "$eachline"
  done

Instead of echo, you can perform some action on the individual line.