001、
[root@PC1 test3]# ls test.txt [root@PC1 test3]# cat test.txt ## 测试数据 jjjj kkk gene jjj dddd yyy iiii ppp ffff 999 gene ttt eeee mmm aaaa nnn [root@PC1 test3]# awk 'BEGIN{idx = 0} {ay1[NR] = $0; if($1 == "gene") {idx++; ay2[idx] = NR}} END {for (i in ay2) {print ay1[ay2[i]]; print ay1[ay2[i]+1]}}' test.txt gene jjj dddd yyy gene ttt eeee mmm [root@PC1 test3]# awk 'BEGIN{idx = 0} {ay1[NR] = $0; if($1 == "gene") {idx++; ay2[idx] = NR}} END {for (i in ay2) {print ay1[ay2[i]-1]; print ay1[ay2[i]]}}' test.txt jjjj kkk gene jjj ffff 999 gene ttt
