学习收集一个脚本，请大神提供姿势不限，谢谢

1cpuer

#,; PWD=/mnt/i/je-d/sou-d 12172): # 2019-01-30 16:47:14 1548838034
#.: seq 12 | awk '/5/{a=NR;print a}'
5

#,; PWD=/mnt/i/je-d/sou-d 12173): # 2019-01-30 16:48:29 1548838109
#.: seq 12 | awk '/5/{a=NR;print a-3,a+3}'
2 8

#,; PWD=/mnt/i/je-d/sou-d 12174): # 2019-01-30 16:49:11 1548838151
#.: seq 12 | awk '/5/{a=NR}NR>=2 && NR<=8{print}'
2
3
4
5
6
7
8

#,; PWD=/mnt/i/je-d/sou-d 12175): # 2019-01-30 16:49:53 1548838193
#.: seq 12 | awk '/5/{a=NR}NR>=a-3 && NR<=a+3{print}'
1
2
3
5
6
7
8



#,; PWD=/mnt/i/je-d/sou-d 1217: # 2019-01-30 16:55:10 1548838510
#.: seq 12 | awk '/5/{a1=NR-3;b1=NR+3}NR>=a1 && NR<=b1{print}'
5
6
7
8

#,; PWD=/mnt/i/je-d/sou-d 12179): # 2019-01-30 16:55:20 1548838520
#.: seq 12 | awk 'b==1{c++; a=a?a"\n"$00} /5/{if (b==1){print a; a=""; c=0} else {a=$0; b=1}} c==3{print a; a=""; b=0; c=0}'
5
6
7
8