基于字段的文件比较和追加

基于字段的文件比较和追加

我想比较两个文件,locus_file.txt 是一个非常大的文件,atrr.txt 是一个小文件。我想将第一个文件的前两列与 atrr.txt 的第二列相匹配,并一起打印属性。

locus_file.txt:大文件

LOC_Os02g47020, LOC_Os03g57840,0.88725114
LOC_Os02g47020, LOC_Os07g36080,0.94455624
LOC_Os02g47020, LOC_Os03g02590,0.81881344

attr.txt:属性文件

blue LOC_Os02g47020
red  LOC_Os02g40830
blue LOC_Os07g36080
yellow LOC_Os03g57840
red LOC_Os03g02590

期望的输出:

LOC_Os02g47020, LOC_Os03g57840,0.88725114,blue, yellow
LOC_Os02g47020, LOC_Os07g36080,0.94455624,blue, blue
LOC_Os02g47020, LOC_Os03g02590,0.81881344,blue, red

请注意:例如,在所需输出的第一行中,第 4 列的颜色为 atrr.txt 中的 LOC_Os02g47020,第 5 列的颜色为 atrr.txt 中的 LOC_Os03g57840

答案1

解决方案awk

$ awk '
FNR == NR {a[$2] = $1;next}
{
    split($1,f1,",");
    split($2,f2,",");
    print $0,a[f1[1]],a[f2[1]];
}' OFS=, attr.txt locus_file.txt
LOC_Os02g47020, LOC_Os03g57840,0.88725114,blue,yellow
LOC_Os02g47020, LOC_Os07g36080,0.94455624,blue,blue
LOC_Os02g47020, LOC_Os03g02590,0.81881344,blue,red

答案2

这个任务听起来像是 awk 的工作:

$ cat locus_file.txt 
LOC_Os02g47020, LOC_Os03g57840,0.88725114
LOC_Os02g47020, LOC_Os07g36080,0.94455624
LOC_Os02g47020, LOC_Os03g02590,0.81881344
$ cat attr.txt 
blue LOC_Os02g47020
red  LOC_Os02g40830
blue LOC_Os07g36080
yellow LOC_Os03g57840
red LOC_Os03g02590
$ awk 'BEGIN { while(getline<"attr.txt">0) c[$2]=$1 ; FS=",[ ]*" ; OFS=", " } { print $1,$2,$3,c[$1],c[$2] }' locus_file.txt 
LOC_Os02g47020, LOC_Os03g57840, 0.88725114, blue, yellow
LOC_Os02g47020, LOC_Os07g36080, 0.94455624, blue, blue
LOC_Os02g47020, LOC_Os03g02590, 0.81881344, blue, red

如果你想要“,”而不是“,”或不同的东西,只需更改OFS

$ awk 'BEGIN { while(getline<"attr.txt">0) c[$2]=$1 ; FS=",[ ]*" ; OFS="," } { print $1,$2,$3,c[$1],c[$2] }' locus_file.txt 
LOC_Os02g47020,LOC_Os03g57840,0.88725114,blue,yellow
LOC_Os02g47020,LOC_Os07g36080,0.94455624,blue,blue
LOC_Os02g47020,LOC_Os03g02590,0.81881344,blue,red

答案3

怎么样

declare -A attr

while read x y; do attr[$y]="$x"; done < attr.txt

然后

while IFS=' ,' read a b c; do 
  d=${attr[$a]}
  e=${attr[$b]} 
  printf "%s, %s,%s,%s, %s\n" "$a" "$b" "$c" "$d" "$e"
done < locus_file.txt

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