循环通过前一个for循环grep生成的op

Question

我有一个包含2列的文件。我想用第二列grep .csv文件。这将产生一个操作。根据第二个生成的输出，我想对第一列进行合并。

例如。

cat file 
aa|bb
cc|dd

cat test.csv

aaaaa,bcad,bbee,bbbeeadaf
rerew,afdaf,afdewrew,qerwqe,dd,e,cc


for i in $(cat file| awk -F'|' '{print $2}'); do 
    echo $i
    cat test.csv | egrep -i "$i"
    while read line; do 
        echo "$line"
        for j in in $(cat file| awk -F'|' '{print $1}'); do 
            echo "$j"
            grep $j $line
        done
    done
done

我厌倦了运行此单行代码，但无法正常工作。我认为它没有运行并且卡在我找不到的位置。

for i in $(cat file| awk -F'|' '{print $2}'); do
    echo $i
    cat test.csv | egrep -i "$i"
    while read line; do
        echo "$line"
        for j in in $(cat file| awk -F'|' '{print $1}'); do 
            echo "$j"
            grep $j $line
        done
    done
done

for i in $(cat file| awk -F'|' '{print $2}'); do 
    echo $i
    cat test.csv | egrep -i "$i"
    while read line; do 
        echo "$line"
        for j in in $(cat file | awk -F'|' '{print $1}'); do 
            echo "$j"
            grep $j 
            $line
        done
    done
done

我希望结果的格式为

aa|bb
cc|dd