One question per day--5 awk advanced

每周绝望原数据文件：id=aa&bb&type&name=ccbb&id=aa&name=cc&typeid=aa&type&bb&name=ddtype&id=aa&cc&name=bbid=bb&cc&type&name=bbaa&id=bb&name=bb&type

Organize and go heavy, get the effect:

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

Tip: awk loops, judgments, variable assignments, de-weighting mechanisms

First Milestone

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

Use awk to remove the upper and lower 5 rows of the G row

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

One question per day--5 awk advanced