我有一个csv分开;.我需要删除第2列和第3列的内容不唯一的行,并将材料传递到标准输出.
输入示例:
irrelevant;data1;data2;irrelevant;irrelevant
irrelevant;data3;data4;irrelevant;irrelevant
irrelevant;data5;data6;irrelevant;irrelevant
irrelevant;data7;data8;irrelevant;irrelevant
irrelevant;data1;data2;irrelevant;irrelevant
irrelevant;data9;data0;irrelevant;irrelevant
irrelevant;data1;data2;irrelevant;irrelevant
irrelevant;data3;data4;irrelevant;irrelevant
期望的输出
irrelevant;data5;data6;irrelevant;irrelevant
irrelevant;data7;data8;irrelevant;irrelevant
irrelevant;data9;data0;irrelevant;irrelevant
我找到了只有第一行打印到输出的解决方案:
sort -u -t ";" -k2,1 file
但这还不够.
我试过使用,uniq -u但我找不到只检查几列的方法.