将行重击到列 [英] Bash rows to column

问题描述

我知道如何将文件中的行转置为列，但是我想将文件下半部分的行追加到上半部分的行.

I know how to transpose rows in a file to columns, but I want to append the lines of the bottom half of a file to the lines to the upper half.

赞:

A1
A2
A3
B1
B2
B3

到

A1 | B1
A2 | B2
A3 | B3

该列表来自两个grep.我在第一个grep后面附加第二个.这两个grep具有相同的点击量.

the list comes from two greps. I append the first grep with the second one. The two greps have the same amount of hits.

我想在bash脚本中执行此操作.

I want to do this within a bash script.

推荐答案

$ awk '{a[NR]=$0} END{ m=NR/2; for (i=1;i<=m;i++) print a[i] " | " a[i+m]}' file
A1 | B1
A2 | B2
A3 | B3

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