每日一题--5 awk进阶

每周绝望原数据文件：
id=aa&bb&type&name=cc
bb&id=aa&name=cc&type
id=aa&type&bb&name=dd
type&id=aa&cc&name=bb
id=bb&cc&type&name=bb
aa&id=bb&name=bb&type

id=aa&bb&name=cc&type
id=aa&bb&name=dd&type
id=aa&cc&name=bb&type
id=bb&cc&name=bb&type
id=bb&aa&name=bb&type

awk -F '&' -v OFS='&' '{for(i=1;i<=4;i++)printf"%s" $i;printf "\n"}' awk.txt   实现每个遍历了

awk -F '&' -v OFS='&' '{for(i=1;i<=4;i++){if($i~/^id.*$/)A=$i;if($i~/^[a-z]{2}$/)B=$i;if($i~/^name.*/)C=$i;if($i~/^type$/)D=$i}print A,B,C,D}' awk.txt

echo {a..z} | xargs -n 1 >awk.txt

for j in `awk '/^j$/{for(i=NR-5;i<=NR+5;i++)print i}' 1.txt `;do awk -v j=$j 'NR==j{print $0}' 1.txt;done