通过匹配其他文件中的顺序来打印行

Question

文件1.txt

SRR1071717
SRR1079830
SRR1081765
SRR1085402
SRR1086236
SRR1092208
SRR1093930
SRR1097296
SRR1099957
SRR1120296

文件2.txt

SRR1120296,female
SRR1099957,male
SRR1097296,female
SRR1093930,female
SRR1092208,female
SRR1086236,female
SRR1085402,male
SRR1081765,male
SRR1079830,male
SRR1071717,male

所需输出

SRR1071717  male
SRR1079830  male
SRR1081765  male
SRR1085402  male
SRR1086236  female
SRR1092208  female
SRR1093930  female
SRR1097296  female
SRR1099957  male
SRR1120296  female

我想保持file1.txt的顺序来打印file2.txt。两个文件具有相同的行（不能使用排序，因为顺序会改变）。

Answer 1

您可以将

file2.txt

中的行存储到数组中，然后使用

file1.txt

中的索引打印它们。

NR==FNR

是您正在读取第一个文件的条件（即

file2.txt

，注意参数的顺序）。

awk -F, '{if (NR==FNR) a[$1]=$0; else print a[$1]}' file2.txt file1.txt

SRR1071717,male
SRR1079830,male
SRR1081765,male
SRR1085402,male
SRR1086236,female
SRR1092208,female
SRR1093930,female
SRR1097296,female
SRR1099957,male
SRR1120296,female