使用sed替换连续多行
sed '/0 112.94.29.153 TCP_HIT:DIRECT/{N;N;N;N;s/.*/test line test line/}' test.log
#用4个N合并"0 112.94.29.153 TCP_HIT:DIRECT"下面的4行，然后匹配替换
#原文本内容
1:200 58.255.96.166 TCP_MISS:DIRECT
2:304 222.248.107.243 TCP_IMS_HIT:NONE
3:304 27.43.228.148 TCP_IMS_HIT:NONE
4:304 119.39.110.141 TCP_IMS_HIT:NONE
5:200 211.140.132.230 TCP_MEM_HIT:NONE
6:304 112.12.10.253 TCP_IMS_HIT:NONE
7:200 112.94.57.134 TCP_MEM_HIT:NONE
8:200 112.12.10.253 TCP_HIT:NONE
9:200 211.140.132.230 TCP_MEM_HIT:NONE
10:0 112.94.29.153 TCP_HIT:DIRECT
11:304 120.85.224.50 TCP_IMS_HIT:NONE
12:206 58.254.39.135 TCP_MEM_HIT:NONE
13:200 112.94.57.134 TCP_MEM_HIT:NONE
14:304 120.85.224.50 TCP_IMS_HIT:NONE
15:304 220.243.2.253 TCP_IMS_HIT:NONE
16:200 222.248.233.157 TCP_REFRESH_HIT:DIRECT
17:200 112.94.57.134 TCP_MEM_HIT:NONE
18:304 120.85.224.50 TCP_IMS_HIT:NONE
19:200 112.94.29.153 TCP_REFRESH_MISS:DIRECT
20:200 112.94.57.134 TCP_MEM_HIT:NONE
21:304 120.85.224.50 TCP_IMS_HIT:NONE
22:200 112.94.57.134 TCP_MEM_HIT:NONE
23:200 58.254.39.135 TCP_MEM_HIT:NONE
24:304 120.85.224.50 TCP_IMS_HIT:NONE
25:304 58.253.211.9 TCP_IMS_HIT:NONE
26:200 27.43.146.33 TCP_MEM_HIT:NONE
27:200 112.12.10.253 TCP_HIT:NONE
28:304 120.85.224.50 TCP_IMS_HIT:NONE
29:200 220.112.53.14 TCP_MEM_HIT:NONE
30:304 114.112.28.6 TCP_IMS_HIT:NONE
#替换后内容
1:200 58.255.96.166 TCP_MISS:DIRECT
2:304 222.248.107.243 TCP_IMS_HIT:NONE
3:304 27.43.228.148 TCP_IMS_HIT:NONE
4:304 119.39.110.141 TCP_IMS_HIT:NONE
5:200 211.140.132.230 TCP_MEM_HIT:NONE
6:304 112.12.10.253 TCP_IMS_HIT:NONE
7:200 112.94.57.134 TCP_MEM_HIT:NONE
8:200 112.12.10.253 TCP_HIT:NONE
9:200 211.140.132.230 TCP_MEM_HIT:NONE
test line test line
15:304 220.243.2.253 TCP_IMS_HIT:NONE
16:200 222.248.233.157 TCP_REFRESH_HIT:DIRECT
17:200 112.94.57.134 TCP_MEM_HIT:NONE
18:304 120.85.224.50 TCP_IMS_HIT:NONE
19:200 112.94.29.153 TCP_REFRESH_MISS:DIRECT
20:200 112.94.57.134 TCP_MEM_HIT:NONE
21:304 120.85.224.50 TCP_IMS_HIT:NONE
22:200 112.94.57.134 TCP_MEM_HIT:NONE
23:200 58.254.39.135 TCP_MEM_HIT:NONE
24:304 120.85.224.50 TCP_IMS_HIT:NONE
25:304 58.253.211.9 TCP_IMS_HIT:NONE
26:200 27.43.146.33 TCP_MEM_HIT:NONE
27:200 112.12.10.253 TCP_HIT:NONE
28:304 120.85.224.50 TCP_IMS_HIT:NONE
29:200 220.112.53.14 TCP_MEM_HIT:NONE
30:304 114.112.28.6 TCP_IMS_HIT:NONE
