How can I merge two files?

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别跟我提以往
别跟我提以往 2021-01-27 03:26

I have two files

File 1:

7118
7457
7591
7539
8001

File 2:

5003
5008
5011
5026
5028
5029
5031

Output t

4条回答
  •  轻奢々
    轻奢々 (楼主)
    2021-01-27 04:04

    And a bash function:

    function cross() {
        exec 3<$2
        while read -u 3 a ; do
            exec 4<$1
            while read -u 4 b ; do
                echo $b,$a
            done
        done
        3<&-
        4<&-
    }
    

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