linux - 在 linux 中合并行

Question

如果下面有一个输入文件，Linux 中是否有任何命令/方式可以将其转换为我想要的文件？

输入文件:

Column_1     Column_2  
scaffold_A   SNP_marker1
scaffold_A   SNP_marker2
scaffold_A   SNP_marker3
scaffold_A   SNP_marker4
scaffold_B   SNP_marker5
scaffold_B   SNP_marker6
scaffold_B   SNP_marker7
scaffold_C   SNP_marker8
scaffold_A   SNP_marker9
scaffold_A   SNP_marker10

所需的输出文件:

Column_1     Column_2  
scaffold_A   SNP_marker1;SNP_marker2;SNP_marker3;SNP_marker4
scaffold_B   SNP_marker5;SNP_marker6;SNP_marker7
scaffold_C   SNP_marker8
scaffold_A   SNP_marker9;SNP_marker10

我正在考虑使用 grep、uniq 等，但仍然不知道如何完成。

Answer 1

Perl 解决方案:

perl -lane 'sub output {
                print "$last\t", join ";", @buff;
            }
            $last //= $F[0];
            if ($F[0] ne $last) {
               output();
               undef @buff;
               $last = $F[0];
            }
            push @buff, $F[1];
            }{ output();'